☠️ Sago Palm (Cycas revoluta)

☠️ Life-Threatening Toxicity

Sago palm is considered one of the most dangerous ornamental plants for dogs. Although commonly used in Florida landscapes and as a houseplant, every part of the plant is poisonous, with the seeds containing the highest concentration of toxins. Ingesting even a single seed can cause severe liver failure, neurological signs, and death. Any suspected ingestion should be treated as a veterinary emergency.

Identification

• Scientific Name:Cycas revoluta

• Common Names: Sago Palm, King Sago, Japanese Sago Palm, Cycad

• Plant Type: Evergreen cycad (not a true palm)

• Height: Typically 3–10 feet, though older specimens may grow taller

• Leaves: Dark green, glossy, feather-like fronds with stiff, narrow leaflets that emerge in a circular crown from the top of the trunk.

• Trunk: Thick, rough, brown trunk covered with old leaf scars.

• Seeds: Large, bright orange to red seeds produced on female plants.

• Cones: Male plants produce a tall, cone-shaped structure, while female plants develop a rounded seed structure containing numerous seeds.

Where Is It Found?

Distribution in Florida: Throughout the state

Sago palms are extremely popular ornamental plants and are commonly found in:

• Residential landscapes

• Apartment and condominium complexes

• Commercial landscaping

• Shopping centers

• Hotels and resorts

• Parks

• Botanical gardens

• As indoor houseplants

Because they are slow-growing, drought-tolerant, and require relatively little maintenance, they are one of the most widely planted ornamental cycads in Florida.

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Seeds (most toxic)

• Leaves

• Roots

• Trunk

• Cones

The bright orange-red seeds pose the greatest risk because they often attract curious dogs and are easily picked up and chewed.

How Toxic Is It?

☠️ Life-Threatening

Sago palms contain several toxins, including cycasin, which primarily causes severe liver damage. Neurological toxins may also contribute to tremors and seizures. Without prompt veterinary treatment, poisoning can rapidly become fatal.

Signs of Poisoning

Symptoms often begin within a few hours after ingestion and may include:

• Excessive drooling

• Vomiting

• Bloody diarrhea

• Loss of appetite

• Abdominal pain

• Weakness

• Lethargy

• Increased thirst

• Yellowing of the gums, eyes, or skin (jaundice)

• Tremors

• Seizures

• Difficulty walking

• Collapse

• Liver failure

• Abnormal bleeding or bruising

• Death

What Should You Do?

If you suspect your dog has chewed or ingested any part of a sago palm:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to develop. Early treatment dramatically improves the chances of survival.

Prognosis

The prognosis depends on:

• Which part of the plant was ingested

• The amount consumed

• How quickly treatment begins

• Whether liver damage has already developed

Even with aggressive treatment, sago palm poisoning carries a guarded to poor prognosis in severe cases. Dogs that receive immediate veterinary care before significant liver damage occurs have the best chance of recovery.

Interesting Fact

Despite its name, the sago palm is not actually a palm. It belongs to an ancient group of plants called cycads, which have existed since before the age of the dinosaurs. While admired for their tropical appearance, cycads rank among the most poisonous ornamental plants for pets.

Quick Identification Tips

☑️ Stiff, glossy, feather-like fronds arranged in a circular crown

☑️ Thick, rough brown trunk with old leaf scars

☑️ Bright orange to red seeds on female plants

☑️ Large upright cone on male plants

☑️ Frequently planted in Florida landscapes and commonly sold as a houseplant

☑️ One of the most dangerous ornamental plants for dogs in Florida

Descriptio☠️ Oleander (Nerium oleander)

☠️ Life-Threatening Toxicity

Oleander is one of the most dangerous ornamental plants found in Florida. Despite its beautiful flowers and widespread use in landscaping, every part of the plant contains potent cardiac glycosides, toxins that interfere with the heart's normal electrical activity. Ingesting even a small amount can cause severe poisoning, abnormal heart rhythms, and death in both dogs and humans.

Identification

• Scientific Name: Nerium oleander

• Common Names: Oleander, Rosebay

• Plant Type: Evergreen ornamental shrub or small tree

• Height: Typically 6–20 feet

• Leaves: Long, narrow, leathery leaves with smooth edges, usually arranged in pairs or whorls of three. Leaves are dark green with a prominent central vein.

• Flowers: Showy five-petaled flowers that may be pink, white, red, salmon, peach, yellow, or cream depending on the cultivar. Single and double-flowered varieties exist.

• Seed Pods: Long, slender pods that split open when mature to release numerous seeds attached to silky hairs.

Where Is It Found?

Distribution in Florida: Throughout the state

Oleander is one of Florida's most commonly planted ornamental shrubs and is frequently found in:

• Residential landscapes

• Apartment and condominium complexes

• Shopping centers

• Schools

• Parks

• Road medians

• Commercial landscaping

• Public gardens

Because of its drought tolerance and long flowering season, it is widely planted throughout Florida.

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Flowers

• Leaves

• Stems

• Bark

• Roots

• Seed pods

• Seeds

• Plant sap

Even dried leaves remain toxic, and water from a vase containing oleander flowers may contain enough toxins to cause illness if consumed.

How Toxic Is It?

☠️ Life-Threatening

Oleander contains cardiac glycosides, including oleandrin and neriine, which affect the heart's electrical conduction and pumping ability. Even small amounts can result in severe poisoning, particularly in smaller dogs.

Signs of Poisoning

Symptoms may develop within a few hours of ingestion and can include:

• Excessive drooling

• Vomiting

• Diarrhea

• Abdominal pain

• Loss of appetite

• Weakness

• Depression or lethargy

• Tremors

• Dilated pupils

• Slow, rapid, or irregular heartbeat

• Difficulty breathing

• Collapse

• Seizures

• Sudden death

What Should You Do?

If you suspect your dog has chewed or ingested any part of an oleander plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to develop. Immediate veterinary treatment offers the best chance of recovery.

Prognosis

The prognosis depends on:

• The amount ingested

• The size of the dog

• How quickly treatment begins

Dogs treated promptly often recover, while delays in treatment significantly increase the risk of life-threatening heart complications.

Interesting Fact

Oleander is so toxic that people have become seriously ill after using its branches as skewers for cooking or roasting food over a fire. Even the smoke from burning large amounts of oleander can be irritating, so the plant should never be burned or used around food preparation.

Quick Identification Tips

☑️ Long, narrow, leathery evergreen leaves

☑️ Leaves grow in pairs or whorls of three

☑️ Showy flowers in pink, white, red, yellow, peach, or salmon

☑️ Large evergreen shrub commonly used in Florida landscaping

☑️ Long, narrow seed pods that split to release silky-haired seeds

☑️ One of the most common—and most dangerous—ornamental shrubs found throughout Floridan text goes here

Description text ☠️ Castor Bean (Ricinus communis)

☠️ Life-Threatening Toxicity

Castor bean is one of the most poisonous plants found in Florida. Although it is commonly grown as an ornamental for its dramatic foliage and colorful seed pods, the seeds contain ricin, one of the most potent naturally occurring plant toxins. Even chewing a small number of seeds can result in severe poisoning, and ingestion should always be treated as a medical emergency.

Identification

• Scientific Name: Ricinus communis

• Common Names: Castor Bean, Castor Oil Plant, Palma Christi

• Plant Type: Fast-growing ornamental shrub or small tree

• Height: Typically 6–15 feet, but can exceed 20 feet under ideal conditions

• Leaves: Large, glossy, star-shaped leaves with 5–11 pointed lobes. Depending on the cultivar, leaves may be bright green, bronze, burgundy, or deep purple.

• Flowers: Upright clusters of small cream, yellow-green, or bright red flowers. Female flowers develop into distinctive spiny seed capsules.

• Seed Pods: Round, spiny capsules that split open when mature.

• Seeds: Smooth, oval, highly decorative seeds mottled in shades of brown, tan, black, and cream that resemble beans or ticks.

Where Is It Found?

Distribution in Florida: Throughout the state

Castor bean is cultivated as an ornamental but has escaped cultivation in many parts of Florida. It may be found in:

• Residential landscapes

• Roadsides

• Vacant lots

• Canal banks

• Pastures

• Disturbed areas

• Natural areas

Toxic Parts

☠️ Every part of the plant is toxic.

The seeds contain the highest concentration of ricin and pose the greatest danger. The leaves, stems, and seed pods are less toxic but can still cause illness if ingested.

How Toxic Is It?

☠️ Life-Threatening

The severity of poisoning depends on how many seeds are consumed and whether they were chewed. Whole seeds may pass through the digestive tract with little damage, but chewed or crushed seeds release ricin, dramatically increasing the risk of severe poisoning.

Signs of Poisoning

Symptoms typically develop within several hours after ingestion and may include:

• Excessive drooling

• Vomiting

• Severe diarrhea (sometimes bloody)

• Abdominal pain

• Loss of appetite

• Weakness

• Dehydration

• Tremors

• Collapse

• Shock

• Organ failure

• Death in severe cases

What Should You Do?

If you suspect your dog has eaten any part of a castor bean plant—especially the seeds:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to develop before seeking veterinary advice.

Prognosis

The prognosis depends on:

• The number of seeds ingested

• Whether the seeds were chewed

• How quickly treatment begins

Dogs that receive prompt veterinary treatment have a significantly better chance of recovery than those whose treatment is delayed.

Interesting Fact

Although the castor bean plant is extremely poisonous, castor oil has been safely used for centuries in medicine, cosmetics, and industrial products. During commercial processing, ricin remains in the leftover seed material and is not present in properly manufactured pharmaceutical-grade castor oil. The raw seeds themselves, however, remain extremely dangerous and should never be considered safe for pets.

Quick Identification Tips

☑️ Large, star-shaped leaves with 5–11 pointed lobes

☑️ Green, burgundy, or deep purple foliage depending on the variety

☑️ Upright clusters of cream, yellow-green, or bright red flowers

☑️ Distinctive spiny seed pods

☑️ Glossy, marbled bean-like seeds in shades of brown, tan, black, and cream

☑️ Common ornamental plant that has become naturalized throughout much of Floridagoes here

☠️ Life-Threatening Toxicity

Despite its delicate, crocus-like flowers, autumn crocus is one of the most dangerous ornamental plants a dog can encounter. All parts of the plant contain colchicine, a highly toxic alkaloid that can cause severe gastrointestinal damage, multi-organ failure, bone marrow suppression, and death. Even small amounts may result in serious poisoning, making immediate veterinary care essential if ingestion is suspected.

Identification

• Scientific Name: Colchicum autumnale

• Common Names: Autumn Crocus, Meadow Saffron, Naked Lady*

• Plant Type: Perennial bulb (technically a corm)

• Height: 6–12 inches

• Flowers: Goblet-shaped flowers in shades of lavender, pink, or white with six petals and prominent yellow or orange stamens. Flowers emerge in autumn before the leaves appear.

• Leaves: Long, smooth, strap-like green leaves emerge in spring several months after flowering.

• Corm: Rounded underground storage organ covered by a papery brown outer layer.

• Seed Pods: Green capsules that develop among the spring leaves before drying and releasing dark brown seeds.

Note: The common name "Naked Lady" is also used for several unrelated plants, so scientific identification is important.

Where Is It Found?

Distribution in Florida: Primarily cultivated in ornamental gardens throughout the state. It is not native to Florida and is uncommon in natural areas due to the state's warm climate.

You may encounter autumn crocus in:

• Home landscapes

• Botanical gardens

• Specialty bulb gardens

• Ornamental flower beds

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Flowers

• Leaves

• Corm (bulb)

• Seeds

• Stems

The highest concentrations of colchicine are generally found in the corms and seeds, although ingestion of any part should be considered a medical emergency.

How Toxic Is It?

☠️ Life-Threatening

Autumn crocus poisoning is particularly dangerous because symptoms may be delayed for several hours after ingestion, allowing serious internal damage to occur before obvious clinical signs develop.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Severe diarrhea (sometimes bloody)

• Abdominal pain

• Loss of appetite

• Weakness

• Difficulty breathing

• Dehydration

• Tremors

• Collapse

• Bone marrow suppression

• Liver or kidney damage

• Multi-organ failure

Symptoms often begin 2–12 hours after ingestion, although severe complications may continue developing over the next 24–72 hours.

What Should You Do?

If you suspect your dog has ingested any part of an autumn crocus plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to develop—early treatment greatly improves the chances of recovery.

Prognosis

The prognosis depends on:

• The amount consumed

• Which part of the plant was ingested

• How quickly treatment begins

Because colchicine poisoning can continue causing damage long after the initial gastrointestinal signs appear, early veterinary intervention is critical.

Interesting Fact

Autumn crocus is frequently confused with true crocuses (Crocus species) because of their similar flowers. While true crocuses are generally considered much less toxic, autumn crocus contains colchicine, making it dramatically more dangerous to dogs. One of the easiest ways to tell them apart is that autumn crocus flowers appear in the fall without leaves, while true crocuses typically bloom with their leaves present.

Quick Identification Tips

☑️ Lavender, pink, or white crocus-like flowers

☑️ Flowers bloom before the leaves appear

☑️ Long, smooth leaves emerge in spring

☑️ Rounded underground corm (bulb)

☑️ Green seed capsules develop among the spring foliage

☑️ Commonly planted as an ornamental bulb in gardensescription

☠️ Life-Threatening

Yew is one of the most poisonous ornamental plants found in landscapes. Although it is more commonly planted in northern states, several yew species and cultivars are grown in Florida as ornamental shrubs, hedges, and container plants. Nearly every part of the plant is highly toxic to dogs, and ingestion can cause sudden, life-threatening effects on the heart. Because symptoms may develop rapidly, any suspected ingestion should be treated as a veterinary emergency.

Identification

• Scientific Name: Taxus species

• Common Names: Yew, English Yew, Japanese Yew, Hicks Yew

• Plant Type: Evergreen shrub or tree

• Height: 2–50 feet, depending on the species and cultivar

• Leaves: Soft, flat, dark green needles arranged in two rows along the stems. The undersides are lighter green.

• Stems: Woody branches with reddish-brown to gray bark.

• Flowers: Small and inconspicuous; not typically noticeable.

• Fruit: Bright red, fleshy berry-like structures (called arils) surrounding a single hard seed. The red flesh is not toxic, but the seed inside is extremely poisonous if chewed.

Where Is It Found?

Distribution in Florida: Primarily North and Central Florida, with occasional use in South Florida as a landscape ornamental.

Yew may be found in:

• Residential landscapes

• Commercial landscaping

• Botanical gardens

• Historic gardens

• Estate properties

• Container plantings

While it is less common than many other ornamentals in Florida, it is occasionally used in shaded landscapes and formal gardens.

Toxic Parts

☠️ Nearly every part of the plant is toxic.

This includes:

• Needles

• Leaves

• Bark

• Twigs

• Seeds (extremely toxic)

• Roots

Only the soft red fleshy covering (aril) is considered non-toxic, but because it surrounds an extremely poisonous seed, the fruit should always be considered dangerous.

How Toxic Is It?

☠️ Life-Threatening

Yew contains powerful alkaloids called taxine A and taxine B, which interfere with the heart's electrical conduction system. Even small amounts can trigger severe cardiac abnormalities, and sudden death may occur with little or no warning.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Weakness

• Difficulty breathing

• Dilated pupils

• Tremors

• Collapse

• Slow or irregular heart rate

• Cardiac arrhythmias

• Low blood pressure

• Seizures

• Sudden cardiac arrest

• Sudden death

Some animals may collapse suddenly with very few warning signs.

What Should You Do?

If you suspect your dog has eaten any part of a yew plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed to the nearest emergency veterinary hospital without delay.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline while traveling if additional guidance is needed.

• Do not wait for symptoms to appear. Rapid treatment offers the best chance of survival.

Prognosis

The prognosis depends on:

• The amount ingested

• Whether the seeds were chewed

• How quickly treatment begins

Dogs that survive the first 24 hours with aggressive veterinary treatment often recover. However, severe poisonings carry a guarded to poor prognosis because of the risk of fatal cardiac arrhythmias.

Interesting Fact

The same plant responsible for fatal poisonings has also contributed to modern medicine. The Pacific yew (Taxus brevifolia) was the original natural source of paclitaxel (Taxol®), an important chemotherapy drug used to treat several types of cancer. Despite this medical significance, landscape yews remain among the most dangerous ornamental plants for dogs.

Quick Identification Tips

☑️ Evergreen shrub or small tree with soft, flat, dark green needles

☑️ Needles arranged in two neat rows along the stems

☑️ Bright red berry-like arils containing a single hard seed

☑️ Woody stems with reddish-brown bark

☑️ Often used as a hedge or ornamental foundation planting

☑️ Found primarily in North and Central Florida landscapes

Note: The bright red berries often attract curiosity, but the hard seed inside is one of the most poisonous parts of the plant. Even a small amount of chewed foliage or seeds can be fatal to dogs.

☠️ Life-Threatening

Angel's Trumpet is a beautiful ornamental shrub or small tree commonly grown throughout Florida for its large, fragrant, trumpet-shaped flowers. Despite its beauty, every part of the plant is extremely poisonous to dogs. It contains powerful tropane alkaloids that affect the nervous system, heart, and digestive tract. Even small amounts can cause severe poisoning, making immediate veterinary care essential.

Identification

Scientific Name: Brugmansia species

Common Names: Angel's Trumpet, Brugmansia

Plant Type: Evergreen shrub or small tree

Height: Typically 6–20 feet

Leaves: Large, soft, oval-shaped leaves with pointed tips and slightly wavy or toothed edges. They are medium to dark green and may have a slightly fuzzy texture.

Stems: Smooth green stems that become woody with age.

Flowers: Large, hanging trumpet-shaped flowers measuring 6–12 inches long. Flowers may be white, cream, yellow, peach, pink, or orange and are often highly fragrant, especially in the evening.

Seed Pods: Green, oval-shaped seed pods containing numerous flat brown seeds.

Where Is It Found?

Distribution in Florida: Throughout the state.

Angel's Trumpet is commonly found in:

• Residential landscapes

• Tropical gardens

• Botanical gardens

• Commercial landscaping

• Parks

• Container plantings

• Courtyards and patios

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Flowers

• Leaves

• Stems

• Roots

• Seeds

• Seed pods

• Sap

How Toxic Is It?

Angel's Trumpet contains atropine, scopolamine, and hyoscyamine, powerful alkaloids that disrupt normal nerve function. These toxins affect the brain, heart, eyes, respiratory system, and digestive tract, potentially causing severe neurological and cardiovascular complications.

Signs of Poisoning

Symptoms may develop within 30 minutes to several hours and can include:

• Excessive drooling

• Vomiting

• Dilated pupils

• Rapid heart rate

• Restlessness

• Disorientation

• Agitation

• Muscle tremors

• Difficulty walking

• Weakness

• Difficulty breathing

• Seizures

• Collapse

• Coma

What Should You Do?

If you suspect your dog has eaten any part of an Angel's Trumpet plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed to the nearest emergency veterinary hospital.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline if additional guidance is needed.

• Do not wait for symptoms to develop. Early treatment greatly improves the chances of survival.

Prognosis

The prognosis depends on:

• The amount ingested

• Which part of the plant was consumed

• How quickly treatment begins

Dogs treated promptly often recover with aggressive supportive care. Severe poisonings involving respiratory or neurological complications require hospitalization and carry a more guarded prognosis.

Interesting Fact

Angel's Trumpet is often confused with Jimsonweed (Datura species). A simple way to tell them apart is by the flowers—Angel's Trumpet flowers hang downward, while Jimsonweed flowers point upward. Both plants contain the same dangerous toxins and should be considered life-threatening if ingested.

Quick Identification Tips

☑️ Large, hanging trumpet-shaped flowers

☑️ Flowers may be white, cream, yellow, peach, pink, or orange

☑️ Large, soft green leaves with slightly wavy edges

☑️ Woody shrub or small tree commonly planted in Florida landscapes

☑️ Green oval seed pods containing numerous flat brown seeds

☑️ Sweetly fragrant flowers, especially in the evening

☠️ Life-Threatening

Chinaberry is a fast-growing ornamental tree commonly found throughout Florida. Although it produces attractive clusters of lavender flowers and bright yellow berries, every part of the plant is toxic to dogs, with the berries posing the greatest risk. The toxins affect both the digestive and nervous systems and can cause severe poisoning. Prompt veterinary treatment is essential if ingestion is suspected.

Identification

Plant Type: Deciduous ornamental tree

Height: Typically 30–50 feet

Leaves: Large, bright green, fern-like compound leaves with multiple pointed, serrated leaflets.

Stems: Young branches are smooth and green, becoming grayish-brown and rougher with age.

Flowers: Fragrant clusters of small lavender to light purple flowers with five narrow petals and a darker purple center. Blooms appear in spring.

Fruit: Round berries approximately ½–¾ inch in diameter that ripen from green to golden yellow. The berries often remain on the tree throughout the winter.

Where Is It Found?

Distribution in Florida: Throughout the state.

Chinaberry is commonly found in:

• Residential landscapes

• Parks

• Roadsides

• Fence lines

• Vacant lots

• Woodlands

• Naturalized areas

Although originally planted as an ornamental tree, Chinaberry is now considered an invasive species throughout much of Florida.

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Berries (most toxic)

• Seeds

• Leaves

• Bark

• Flowers

• Stems

How Toxic Is It?

Chinaberry contains toxic compounds called meliatoxins that affect the gastrointestinal tract and nervous system. While a small amount may cause stomach upset, larger ingestions can result in severe neurological signs, respiratory depression, paralysis, and death.

Signs of Poisoning

Symptoms may develop within a few hours and include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Abdominal pain

• Weakness

• Depression

• Difficulty walking

• Muscle tremors

• Seizures

• Paralysis

• Difficulty breathing

• Collapse

• Coma

What Should You Do?

If you suspect your dog has eaten any part of a Chinaberry tree:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed to the nearest emergency veterinary hospital.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline if additional guidance is needed.

• Do not wait for symptoms to appear. Early treatment greatly improves the chances of recovery.

Prognosis

The prognosis depends on the amount ingested and how quickly treatment begins. Dogs that receive prompt veterinary care often recover, while severe poisonings involving neurological or respiratory complications carry a guarded prognosis.

Interesting Fact

Chinaberry belongs to the same plant family as the neem tree, but unlike neem, Chinaberry is highly toxic. It has escaped cultivation and is now considered an invasive species in many parts of Florida.

Quick Identification Tips

☑️ Large, fern-like compound leaves

☑️ Clusters of fragrant lavender flowers

☑️ Round yellow berries that often remain on the tree through winter

☑️ Gray-brown bark on mature trees

☑️ Fast-growing tree commonly found along roadsides and in naturalized areas

☑️ Invasive throughout much of Florida

Note: The bright yellow berries are especially attractive to curious dogs and children. Because the berries contain the highest concentration of toxins, any suspected ingestion should be treated as a veterinary emergency.

Foxglove (Digitalis purpurea)

☠️ Life-Threatening

Foxglove is a striking flowering plant grown in ornamental gardens for its tall spikes of tubular flowers. Although it is less common in Florida than in cooler climates, it is still found in home gardens and landscapes. Every part of the plant contains potent cardiac glycosides that interfere with the heart's normal electrical activity. Even small amounts can cause serious heart rhythm disturbances, making immediate veterinary care essential.

Identification

Plant Type: Biennial or short-lived perennial flowering plant

Height: Typically 2–6 feet

Leaves: Soft, dark green, lance-shaped leaves with a wrinkled surface and finely toothed edges. Lower leaves form a dense rosette during the first year.

Stems: Thick, upright green flowering stalks.

Flowers: Tall spikes of tubular, bell-shaped flowers. Colors include purple, pink, white, yellow, and cream, often with spotted throats.

Seed Pods: Small brown capsules that contain hundreds of tiny seeds.

Where Is It Found?

Distribution in Florida: Occasionally grown throughout the state, especially during cooler months and in ornamental gardens.

Foxglove is commonly found in:

• Residential flower gardens

• Botanical gardens

• Decorative landscape beds

• Cottage gardens

• Container plantings

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Leaves

• Flowers

• Stems

• Roots

• Seeds

The leaves contain the highest concentration of cardiac glycosides.

How Toxic Is It?

Foxglove contains cardiac glycosides, including digitoxin and digoxin-like compounds, which directly affect the heart. These toxins can cause dangerous arrhythmias, severe electrolyte disturbances, collapse, and sudden death.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Weakness

• Lethargy

• Abdominal pain

• Slow or irregular heart rate

• Cardiac arrhythmias

• Collapse

• Tremors

• Seizures

• Sudden death

What Should You Do?

If you suspect your dog has eaten any part of a Foxglove plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed directly to the nearest emergency veterinary hospital.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline if additional guidance is needed.

• Do not wait for symptoms to appear. Early treatment can be lifesaving.

Prognosis

The prognosis depends on the amount ingested and how quickly treatment begins. Mild exposures often recover with prompt treatment, while severe poisonings involving life-threatening heart rhythm abnormalities carry a guarded prognosis.

Interesting Fact

Foxglove is the natural source of the heart medication digoxin. While carefully controlled doses of purified compounds are used medically, the plant itself contains unpredictable concentrations of cardiac glycosides and should never be consumed by people or animals.

Quick Identification Tips

☑️ Tall spikes of tubular, bell-shaped flowers

☑️ Purple, pink, white, yellow, or cream blooms with spotted throats

☑️ Soft, wrinkled dark green leaves

☑️ Upright flowering stalks reaching up to 6 feet

☑️ Small brown seed capsules

☑️ Popular ornamental plant in cottage-style gardens

Note: Because even small amounts of Foxglove can affect the heart, any suspected ingestion should be treated as a veterinary emergency.

☠️ Life-Threatening

Yellow Oleander is an evergreen ornamental shrub or small tree commonly grown throughout Florida for its bright yellow, trumpet-shaped flowers and glossy green foliage. Despite its beauty, every part of the plant is highly toxic to dogs. It contains powerful cardiac glycosides that interfere with the heart's normal electrical activity, and even small amounts can result in life-threatening poisoning.

Identification

Plant Type: Evergreen shrub or small tree

Height: Typically 10–20 feet

Leaves: Long, narrow, glossy green leaves with smooth edges and pointed tips. Leaves are arranged spirally along the stems.

Stems: Smooth green stems when young that become woody and gray-brown as the plant matures.

Flowers: Bright yellow, trumpet-shaped flowers with five overlapping petals. Some cultivated varieties produce peach or apricot-colored blooms.

Fruit: Rounded to somewhat triangular green fruits that mature to black. Each fruit contains several hard seeds.

Where Is It Found?

Distribution in Florida: Throughout the state, especially Central and South Florida.

Yellow Oleander is commonly found in:

• Residential landscapes

• Commercial landscaping

• Parks

• Botanical gardens

• Tropical gardens

• Parking lot medians

• Container plantings

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Leaves

• Flowers

• Stems

• Bark

• Sap

• Fruit

• Seeds (most toxic)

How Toxic Is It?

Yellow Oleander contains cardiac glycosides, including thevetin and peruvoside, which disrupt the heart's electrical conduction system. These toxins can cause dangerous heart rhythm abnormalities, low blood pressure, collapse, and sudden death.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Abdominal pain

• Weakness

• Lethargy

• Slow or irregular heart rate

• Cardiac arrhythmias

• Tremors

• Collapse

• Seizures

• Sudden death

What Should You Do?

If you suspect your dog has eaten any part of a Yellow Oleander plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed directly to the nearest emergency veterinary hospital.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline if additional guidance is needed.

• Do not wait for symptoms to appear. Early treatment offers the best chance of survival.

Prognosis

The prognosis depends on the amount ingested and how quickly treatment begins. Dogs that receive prompt treatment have the best chance of recovery, while severe poisonings involving cardiac arrhythmias carry a guarded to poor prognosis.

Interesting Fact

Although its name is similar, Yellow Oleander is a different species than Common Oleander. Both belong to the same plant family and contain potent cardiac toxins, making each one a veterinary emergency if ingested.

Quick Identification Tips

☑️ Bright yellow trumpet-shaped flowers

☑️ Long, narrow, glossy green leaves

☑️ Evergreen shrub or small tree

☑️ Green fruits that mature to black

☑️ Common ornamental in tropical Florida landscapes

☑️ Contains powerful heart toxins throughout the entire plant

Note: Yellow Oleander is one of the most dangerous ornamental plants grown in Florida. Because even small amounts can cause life-threatening heart abnormalities, any suspected ingestion should be treated as an emergency.

☠️ Life-Threatening

Coontie is Florida's only native cycad and is commonly used in residential and commercial landscapes because of its attractive, palm-like appearance and drought tolerance. Despite being native to Florida, every part of the plant is highly toxic to dogs, especially the seeds. Coontie contains the same dangerous toxin found in Sago Palms and can cause severe liver damage, neurological complications, internal bleeding, and death.

Identification

Plant Type: Native evergreen cycad

Height: Typically 1–3 feet

Leaves: Dark green, stiff, feather-like fronds with numerous narrow leaflets arranged along a central stalk. The foliage grows in a circular rosette from the base of the plant.

Stems: Thick, woody underground stem that is usually hidden beneath the soil.

Cones: Male plants produce narrow, upright cones, while female plants produce rounded cones that contain bright orange to red seeds when mature.

Seeds: Large orange to red seeds that develop inside the female cone. The seeds contain the highest concentration of toxins.

Where Is It Found?

Distribution in Florida: Native throughout much of the state, especially Central and South Florida.

Coontie is commonly found in:

• Residential landscapes

• Native plant gardens

• Commercial landscaping

• Parks

• Botanical gardens

• Coastal landscapes

• Pine flatwoods and other natural habitats

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

• Seeds (most toxic)

• Leaves

• Cones

• Roots

• Underground stem

How Toxic Is It?

Coontie contains cycasin, a potent toxin that causes severe liver damage. It can also affect the nervous system and blood clotting, leading to liver failure, internal bleeding, seizures, and death. Even a single seed can contain enough toxin to cause severe poisoning.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Abdominal pain

• Weakness

• Lethargy

• Yellowing of the gums, eyes, or skin (jaundice)

• Bloody stool

• Bruising or abnormal bleeding

• Tremors

• Seizures

• Collapse

• Liver failure

What Should You Do?

If you suspect your dog has eaten any part of a Coontie plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, proceed directly to the nearest emergency veterinary hospital.

• Contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline if additional guidance is needed.

• Do not wait for symptoms to develop. Immediate treatment offers the best chance of survival.

Prognosis

The prognosis depends on the amount ingested and how quickly treatment begins. Dogs treated before significant liver damage develops have the best chance of recovery. Severe poisonings involving liver failure or neurological signs carry a guarded to poor prognosis.

Interesting Fact

Coontie is often mistaken for a young Sago Palm because both are cycads with similar feather-like foliage. Although Coontie is Florida's only native cycad, it contains the same dangerous toxin, cycasin, and should be considered just as hazardous to dogs.

Quick Identification Tips

☑️ Native Florida cycad with stiff, feather-like fronds

☑️ Dark green leaves growing in a circular rosette

☑️ Male and female plants produce cone-like structures

☑️ Female plants produce bright orange to red seeds

☑️ Commonly used in native and drought-tolerant landscapes

☑️ Frequently mistaken for a young Sago Palm

Note: Because Coontie closely resembles a Sago Palm, many pet owners assume it is harmless because it is native to Florida. In reality, both plants contain cycasin and should be considered life-threatening if ingested by dogs.

☠️ Life-Threatening Toxicity

Carolina Jessamine is a fast-growing evergreen vine commonly grown throughout Florida for its fragrant yellow flowers and ability to quickly cover fences, trellises, arbors, and other landscape structures. Despite its delicate appearance, every part of the plant is poisonous to dogs. It contains potent alkaloids that affect the nervous system and can lead to muscle weakness, respiratory paralysis, seizures, and death. Any suspected ingestion should be treated as a veterinary emergency.

Identification

Scientific Name: Gelsemium sempervirens

Common Names: Carolina Jessamine, Yellow Jessamine, False Jasmine, Evening Trumpet Flower

Plant Type: Evergreen flowering vine

Height: Typically climbs 10–20 feet, though mature vines may grow longer.

Leaves: Glossy, dark green, lance-shaped leaves with smooth edges that grow in opposite pairs along the vine.

Stems: Slender, twining woody stems that climb by wrapping around nearby structures.

Flowers: Bright yellow, trumpet-shaped flowers with five fused lobes. The blooms are highly fragrant and appear primarily in late winter and early spring.

Seed Pods: Long, narrow seed capsules that split open when mature to release numerous flat seeds.

Where Is It Found?

Distribution in Florida: Throughout the state

Carolina Jessamine is commonly found in:

Residential landscapes

Fences and trellises

Arbors and pergolas

Commercial landscaping

Parks

Botanical gardens

Roadsides

Woodland edges

Natural areas

Because it is native to the southeastern United States, drought tolerant, and produces abundant early-season flowers, Carolina Jessamine is a popular ornamental vine throughout Florida.

Toxic Parts

☠️ Every part of the plant is toxic.

This includes:

Leaves

Flowers

Stems

Roots

Seeds

Sap

How Toxic Is It?

☠️ Life-Threatening

Carolina Jessamine contains several toxic alkaloids, including gelsemine and gelseminine, which interfere with normal nervous system function. Severe poisoning can rapidly affect breathing, muscle control, and heart function. Without prompt veterinary treatment, poisoning can become fatal.

Signs of Poisoning

Symptoms often begin within a few hours after ingestion and may include:

• Excessive drooling

• Vomiting

• Weakness

• Difficulty walking

• Muscle tremors

• Dilated pupils

• Slow heart rate

• Difficulty breathing

• Paralysis

• Collapse

• Seizures

• Coma

• Death

What Should You Do?

If you suspect your dog has chewed or ingested any part of a Carolina Jessamine plant:

Remove any remaining plant material from your dog's mouth if it can be done safely.

Contact your veterinarian immediately.

If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

Do not wait for symptoms to develop. Early treatment dramatically improves the chances of survival.

Prognosis

The prognosis depends on:

The amount consumed

How quickly treatment begins

Whether respiratory paralysis has developed

Even with aggressive treatment, severe Carolina Jessamine poisoning carries a guarded to poor prognosis. Dogs that receive immediate veterinary care before significant neurological or respiratory complications develop have the best chance of recovery.

Interesting Fact

Despite its common name, Carolina Jessamine is not a true jasmine. It belongs to a completely different plant family and is Florida's state wildflower. While admired for its beautiful yellow flowers and sweet fragrance, it is one of the most toxic native ornamental vines for dogs.

Quick Identification Tips

☑️ Bright yellow, trumpet-shaped flowers

☑️ Glossy, dark green leaves growing in opposite pairs

☑️ Slender twining evergreen vine

☑️ Highly fragrant blooms in late winter and early spring

☑️ Long, narrow seed pods

☑️ Commonly grown on fences, trellises, arbors, and throughout Florida landscapes

🟠 Moderate Toxicity

Lantana is a colorful flowering shrub commonly found throughout Florida in home landscapes, parks, and along roadsides. While prized for its vibrant blooms and ability to attract butterflies, every part of the plant is toxic to dogs, particularly the unripe green berries. Most cases involve gastrointestinal upset, but larger ingestions can lead to more serious complications, including liver damage.

Identification

• Scientific Name: Lantana camara

• Common Names: Lantana, Wild Sage, Shrub Verbena

• Plant Type: Evergreen or semi-evergreen flowering shrub

• Height: Typically 2–6 feet, though some varieties may grow larger.

• Leaves: Rough, textured, oval-shaped leaves with serrated edges. When crushed, the leaves produce a distinctive pungent odor.

• Stems: Green to purplish, square, and covered with fine hairs. Older stems become woody.

• Flowers: Dense clusters of small tubular flowers that change color as they mature. Common color combinations include yellow, orange, red, pink, purple, white, and multicolored varieties.

• Berries: Small round berries that are green when immature and turn dark purple to black when ripe.

Where Is It Found?

Distribution in Florida: Throughout the state

Lantana is extremely common in Florida and may be found in:

• Residential landscapes

• Butterfly gardens

• Parks

• Commercial landscaping

• Roadsides

• Vacant lots

• Coastal areas

• Disturbed natural habitats

Because it tolerates heat, drought, and poor soils, lantana is widely planted throughout Florida and has become naturalized in many areas.

Toxic Parts

🟠 Every part of the plant is considered toxic.

This includes:

• Leaves

• Flowers

• Stems

• Green (unripe) berries

• Ripe berries

The unripe green berries generally contain the highest concentration of toxins.

How Toxic Is It?

🟠 Moderate Toxicity

Lantana contains compounds called lantadenes, which can affect the liver and digestive system. Most dogs that nibble small amounts experience mild gastrointestinal upset, but consuming larger quantities can result in more severe illness.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Abdominal discomfort

• Lethargy

• Weakness

• Dehydration

With larger ingestions or more severe poisoning:

• Liver damage

• Yellowing of the eyes or gums (jaundice)

• Increased sensitivity to sunlight (rare)

• Collapse

What Should You Do?

If you suspect your dog has eaten lantana:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian for guidance.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Monitor your dog closely, even if only a small amount was consumed, as symptoms may take several hours to develop.

Prognosis

The prognosis is generally good for dogs that ingest only a small amount and receive prompt veterinary care. Dogs that consume larger quantities, particularly of the berries, may require hospitalization and supportive treatment. Severe cases involving liver damage carry a more guarded prognosis.

Interesting Fact

Lantana is one of Florida's most popular butterfly plants because its nectar attracts butterflies, bees, and hummingbirds. While it provides an important food source for pollinators, its leaves and berries can pose a risk to pets, making it a plant worth carefully considering if you have dogs that like to explore or chew vegetation.

Quick Identification Tips

☑️ Dense clusters of small flowers that often change color as they mature

☑️ Flower colors include yellow, orange, red, pink, purple, white, and multicolored combinations

☑️ Rough, textured leaves with serrated edges

☑️ Leaves have a strong odor when crushed

☑️ Square, slightly hairy stems that become woody with age

☑️ Small green berries that ripen to dark purple or black

Note: There are more than 100 cultivated varieties and hybrids of lantana, so flower colors and growth habits can vary considerably. Despite these differences, all varieties should be considered potentially toxic to dogs.

🔴 Highly Toxic

Azaleas are among the most popular flowering shrubs in Florida, prized for their vibrant spring blooms and evergreen foliage. Unfortunately, every part of the plant is toxic to dogs. Azaleas contain naturally occurring toxins called grayanotoxins, which interfere with normal nerve, muscle, and heart function. Even ingesting a small amount can result in serious poisoning, making prompt veterinary evaluation essential.

Identification

• Scientific Name: Rhododendron species

• Common Names: Azalea

• Plant Type: Evergreen or deciduous flowering shrub

• Height: Typically 2–10 feet, depending on the variety

• Leaves: Small to medium-sized oval leaves with smooth edges. Most Florida landscape varieties have glossy, dark green evergreen foliage.

• Stems: Woody, multi-branched shrub with smooth gray to brown bark.

• Flowers: Funnel- or trumpet-shaped flowers with five petals. Blooms may be pink, white, red, purple, lavender, salmon, peach, or bi-colored depending on the cultivar.

• Seed Pods: Small brown capsules that split open when mature to release numerous tiny seeds.

Where Is It Found?

Distribution in Florida: Throughout the state

Azaleas are one of Florida's most widely planted ornamental shrubs and are commonly found in:

• Residential landscapes

• Apartment and condominium complexes

• Commercial landscaping

• Parks

• Botanical gardens

• Schools

• Hotels and resorts

• Foundation plantings around homes and businesses

They thrive particularly well in North and Central Florida but are grown throughout the state.

Toxic Parts

🔴 Every part of the plant is toxic.

This includes:

• Flowers

• Leaves

• Stems

• Twigs

• Nectar

• Seed pods

The leaves and flowers are the parts most commonly ingested by curious dogs.

How Toxic Is It?

🔴 Highly Toxic

Azaleas contain grayanotoxins, which affect the digestive tract, nervous system, and cardiovascular system. Even chewing a few leaves may be enough to cause clinical signs in a dog. While fatalities are uncommon with prompt treatment, severe poisonings can become life-threatening.

Signs of Poisoning

Symptoms typically develop within a few hours after ingestion and may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Abdominal pain

• Weakness

• Lethargy

• Difficulty walking or stumbling

• Tremors

• Low blood pressure

• Slow or irregular heart rate

• Difficulty breathing

• Collapse

• Seizures

• Coma

What Should You Do?

If you suspect your dog has eaten any part of an azalea:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to appear. Early treatment significantly improves the chances of recovery.

Prognosis

The prognosis depends on:

• The amount ingested

• The size of the dog

• How quickly treatment begins

Most dogs recover with prompt veterinary treatment and supportive care. However, larger ingestions can result in serious cardiovascular and neurological complications requiring hospitalization.

Interesting Fact

Azaleas belong to the Rhododendron genus, meaning all azaleas are rhododendrons, but not all rhododendrons are azaleas. Both contain the same toxic compounds, called grayanotoxins. These toxins can also contaminate nectar, producing the rare phenomenon known as "mad honey," which has caused poisoning in both humans and animals.

Quick Identification Tips

☑️ Dense flowering shrub commonly found throughout Florida

☑️ Funnel-shaped flowers in pink, white, red, purple, lavender, salmon, peach, or bi-colored varieties

☑️ Small, glossy oval leaves

☑️ Woody branching stems

☑️ Brown seed capsules that split open to release tiny seeds

☑️ Heavy spring blooms, with some cultivars flowering again later in the year

Note: There are thousands of cultivated azalea varieties available. While flower color, size, and growth habit vary considerably, all azalea varieties should be considered highly toxic to dogs.

🟥 Highly Toxic

Yesterday-Today-and-Tomorrow is a beautiful flowering shrub commonly grown in Florida landscapes for its fragrant blooms that change color from deep purple to lavender and finally white over several days. Despite its ornamental appeal, every part of the plant is toxic to dogs, with the berries posing the greatest risk. The plant contains several toxic compounds that primarily affect the nervous system and digestive tract, and ingestion can quickly become a veterinary emergency.

Identification

• Scientific Name: Brunfelsia pauciflora

• Common Names: Yesterday-Today-and-Tomorrow, Kiss Me Quick, Morning-Noon-and-Night

• Plant Type: Evergreen flowering shrub

• Height: Typically 3–8 feet

• Leaves: Glossy, dark green, smooth-edged, elliptical leaves arranged alternately along the stems.

• Stems: Woody, branching shrub with grayish-brown bark.

• Flowers: Fragrant five-petaled flowers that change color over several days from deep purple to lavender and finally white, often displaying all three colors on the same plant simultaneously.

• Fruit: Small round berries that mature from green to yellow-orange or tan and may remain on the plant after flowering.

Where Is It Found?

Distribution in Florida: Throughout much of the state, particularly Central and South Florida.

Yesterday-Today-and-Tomorrow is commonly found in:

• Residential landscapes

• Botanical gardens

• Parks

• Commercial landscaping

• Tropical and subtropical gardens

• Foundation plantings

Because it prefers warm climates, it is especially popular in Central and South Florida.

Toxic Parts

🟥 Every part of the plant is toxic.

This includes:

• Flowers

• Leaves

• Stems

• Roots

• Berries (most toxic)

The berries are considered particularly dangerous because they are attractive to curious pets and contain high concentrations of the plant's toxins.

How Toxic Is It?

🟥 Highly Toxic

Yesterday-Today-and-Tomorrow contains several naturally occurring toxins, including brunfelsamidine, which can overstimulate the nervous system. Ingestion may cause severe neurological signs, and large amounts can become life-threatening without prompt veterinary treatment.

Signs of Poisoning

Symptoms may include:

• Excessive drooling

• Vomiting

• Diarrhea

• Loss of appetite

• Restlessness

• Muscle tremors

• Muscle rigidity

• Lack of coordination

• Hyperactivity

• Seizures

• Difficulty breathing

• Collapse

Clinical signs may develop within a few hours of ingestion and can progress rapidly.

What Should You Do?

If you suspect your dog has eaten any part of a Yesterday-Today-and-Tomorrow plant:

• Remove any remaining plant material from your dog's mouth if it can be done safely.

• Contact your veterinarian immediately.

• If your veterinarian is unavailable, contact the ASPCA Animal Poison Control Center or the Pet Poison Helpline.

• Do not wait for symptoms to develop. Early treatment greatly improves the chances of recovery.

Prognosis

The prognosis depends on:

• The amount ingested

• Which part of the plant was consumed

• How quickly treatment begins

Many dogs recover with aggressive veterinary care and supportive treatment. However, dogs that develop severe neurological signs or seizures often require hospitalization and intensive monitoring.

Interesting Fact

Yesterday-Today-and-Tomorrow gets its unusual name because each flower changes color over three days—opening deep purple, fading to lavender the following day, and turning nearly white before dropping from the plant. This means a single shrub often displays three different flower colors at the same time.

Quick Identification Tips

☑️ Purple, lavender, and white flowers often blooming simultaneously

☑️ Fragrant five-petaled flowers

☑️ Glossy, dark green leaves

☑️ Evergreen shrub commonly used in tropical landscapes

☑️ Small round berries that mature from green to yellow-orange or tan

☑️ Most commonly planted in Central and South Florida

Note: Because the colorful flowers and berries are attractive to both children and pets, Yesterday-Today-and-Tomorrow should be planted with caution in homes where dogs have access to the landscape.