Cats & Dogs
Potentially toxicConsulted references classify the plant as toxic or irritating for that pet type.
Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.
Sources
Pet safety reference
Grapefruit
Citrus paradisi
Grapefruit is a citrus tree known for its large, tart fruit and glossy, aromatic foliage. While popular in home orchards, all parts of the plant contain essential oils and psoralens that can cause adverse reactions in pets.
Citrus paradisiCitrus paradisiiGrapefruit tree
- Light
- Bright direct light
- Habit
- Tree
- Care
- Moderate
Safety status
If a pet has chewed or swallowed plant material and is showing symptoms, contact a veterinarian or poison resource immediately. This product is for structured reference, not diagnosis.
Cats — concern notes
Common signs
Drooling, vomiting, diarrhea, and potential skin irritation upon contact.
Escalation note
Ingestion of plant material or essential oils can lead to gastrointestinal upset and photosensitivity. Please contact your veterinarian if your cat has ingested any part of this plant.
Dogs — concern notes
Common signs
Vomiting, diarrhea, lethargy, and potential skin irritation or dermatitis.
Escalation note
The essential oils and compounds in the plant can cause digestive distress and skin sensitivity. If you suspect your dog has consumed this plant, consult your veterinarian for guidance.
Safer alternatives
No hand-picked alternatives for this plant yet. You can still pick your own using the Compare button on any other plant.
Source evidence
ASPCA Toxic Plant List
toxicology · 99% reliability
Grapefruit is listed as toxic to cats and dogs due to essential oils and psoralens.
Kew Plants of the World Online
botanical · 95% reliability
Accepted scientific name for the grapefruit tree.
Questions about Grapefruit
Is grapefruit toxic to cats?
Yes, grapefruit is potentially toxic to cats. All parts of the plant contain essential oils and psoralens that can cause drooling, vomiting, diarrhea, and skin irritation — making it a plant to keep well out of your cat's reach.
What symptoms will my cat show after eating grapefruit?
The most common symptoms are vomiting, diarrhea, drooling, depression, and loss of appetite. If your cat contacted the rind or peel oil, also watch for skin redness or dermatitis that can worsen with sun exposure due to the psoralens in citrus.
What should I do if my cat ate part of a grapefruit plant?
Call your vet or ASPCA Animal Poison Control ((888) 426-4435) right away. Symptoms generally appear within hours of exposure. Seek immediate attention if vomiting persists, your cat becomes lethargic or trembles, or you notice reddened or irritated skin patches — especially after contact with the rind or peel oil.
What part of a grapefruit plant is dangerous to cats?
All parts of the grapefruit plant are considered toxic to cats, including the fruit, peel, leaves, and foliage. The essential oils and psoralens found throughout the plant are responsible for gastrointestinal upset and photosensitivity reactions.
Is grapefruit toxic to dogs?
Yes, grapefruit is potentially toxic to dogs. All parts of the plant contain essential oils and psoralens that can cause digestive distress and skin sensitivity, so it should be kept away from dogs.
What symptoms will my dog show after eating grapefruit?
The most common signs are vomiting, diarrhea, lethargy, drooling, and loss of appetite. Dogs that contact grapefruit rind or essential oil may also develop skin irritation that can worsen with sun exposure due to psoralens causing photosensitivity.
What should I do if my dog ate grapefruit?
Monitor your dog closely and call your vet or the ASPCA Animal Poison Control Center at (888) 426-4435. Seek help promptly if vomiting doesn't resolve, your dog refuses food, becomes notably lethargic, or develops skin redness after contact with grapefruit peel or oil.
How quickly do grapefruit poisoning symptoms appear in dogs?
Signs typically appear within hours of ingestion. The ASPCA does not publish a specific recovery duration, so continue monitoring and follow up with your vet if symptoms persist or worsen.
Often compared with
Commonly confused with
Same Citrus genus.
Bitter Orange
Citrus aurantium
Citrus aurantium is a citrus tree known for its fragrant flowers and bitter fruit, often used in essential oil production. It contains compounds that can cause adverse reactions if ingested by pets.
Potentially toxic for cats & dogs.
Same Citrus genus.
Lime
Citrus aurantifolia
The lime tree is a citrus species known for its aromatic foliage and fruit. While popular as a houseplant, all parts of the plant contain essential oils and psoralens that can be harmful to pets if ingested.
Potentially toxic for cats & dogs.
Same Citrus genus.
Lemon
Citrus limonia
The lemon tree is a popular citrus plant known for its fragrant blossoms and acidic fruit. While often grown for culinary use, all parts of the plant contain essential oils and psoralens that can cause adverse reactions in pets.
Potentially toxic for cats & dogs.
Same safety verdict
Other plants with the same verdict
Apple
Malus sylvestris
The apple tree is a deciduous fruit-bearing plant known for its edible fruit, though the seeds and foliage contain cyanogenic glycosides that can be harmful if ingested in large quantities. While the fruit flesh is generally safe, the plant parts containing amygdalin pose a risk to pets.
Potentially toxic for cats & dogs.
Apricot
Prunus armeniaca
The apricot tree is a fruit-bearing species in the rose family. While the fruit flesh is generally considered safe, the stems, leaves, and seeds contain cyanogenic glycosides that can be harmful if ingested.
Potentially toxic for cats & dogs.
Black Locust
Robinia spp.
Robinia species, commonly known as locust trees, contain toxic proteins and alkaloids throughout the bark, leaves, and seeds. Ingestion can lead to significant gastrointestinal and neurological distress in pets.
Potentially toxic for cats & dogs.
Sweet Cherry
Prunus avium
Prunus avium is a deciduous tree known for its edible fruit, but its stems, leaves, and seeds contain cyanogenic glycosides that can be harmful if ingested by pets. It is widely cultivated for fruit production and as an ornamental specimen.
Potentially toxic for cats & dogs.
Same growing conditions
Plants for the same room
Dragon Fruit Cactus
Hylocereus undatus
The Dragon Fruit Cactus is a fast-growing, vining succulent known for its large, fragrant nocturnal flowers and edible fruit. It is considered non-toxic to pets, though its fibrous nature may cause mild digestive upset if consumed in large quantities.
Generally safe for cats & dogs.
Eucalyptus
Eucalyptus species
Eucalyptus is a diverse genus of evergreen trees and shrubs known for their aromatic, oil-rich foliage. While popular in floral arrangements and essential oils, the plant contains compounds that can be harmful if ingested by pets.
Potentially toxic for cats & dogs.
Pencil Cactus
Euphorbia tirucalli
The Pencil Cactus is a succulent shrub known for its pencil-thin, leafless branches that contain a highly irritating milky white sap. It is widely recognized for its ornamental value but requires careful handling due to its toxic properties.
Potentially toxic for cats & dogs.