Geranium — (c) Matt Berger, some rights reserved (CC BY), uploaded by Matt Berger
Photo by (c) Matt Berger, some rights reserved (CC BY), uploaded by Matt BergeriNaturalistCC BY
cat safety reference

Is Geranium safe for cats?

Pelargonium species

Geraniums are popular flowering plants known for their vibrant blooms and fragrant foliage. While they are common garden and container plants, they contain essential oils that can cause adverse reactions if ingested by pets.

GeraniumPelargoniumPelargonium speciesStorksbill
Light
Full sun to partial shade
Habit
Mounded or trailing
Care
Moderate

Safety status

Cats

Potentially toxic

Consulted references classify the plant as toxic or irritating for that pet type.

Verified against ASPCA/provenance audit 2026-05-06 on May 6, 2026.

What this means for your cat

Cats: geranium (Pelargonium) is toxic. ASPCA names the essential oils geraniol and linalool as the toxic principles, and notes cats are the most sensitive species. Most exposures are uncomfortable rather than life-threatening, but the same essential oils that make this plant smell like lemon or rose are the part cats can't metabolize well.

What to watch for

Vomiting and loss of appetite are the most common signs. Cats may also develop depression (unusual quietness or hiding) and dermatitis — red, itchy skin or fur loss where the plant brushed against them or where they groomed sap off their coat. ASPCA notes larger exposures can progress to ataxia, muscle weakness, or hypothermia.

Time window

Specific timing is not well documented for geranium. GI signs from essential-oil-containing plants in cats typically begin within a few hours of exposure and resolve in 24–48 hours with supportive care; dermatitis can take longer to fully clear.

When to call the vet

Call if vomiting persists past one or two episodes, if your cat won't eat for more than 12 hours, if you see skin redness spreading, or any sign of weakness, wobbliness, or low body temperature (cool ears and paws, shivering). Concentrated geranium essential oil exposure — not just plant chewing — should be treated as urgent.

Sources: ASPCA (no specific first-aid guidance).

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.

Catsconcern notes

Common signs

Vomiting, anorexia, depression, and dermatitis.

Escalation note

Ingestion typically results in gastrointestinal upset. If your cat has ingested any part of this plant, please contact your veterinarian or a pet poison control center.

Safer alternatives

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Source evidence

ASPCA Toxic Plant List

toxicology · 99% reliability

Open source

Geraniums contain geraniol and linalool, which can cause vomiting, anorexia, depression, and dermatitis in dogs and cats.

NC State Extension Plant Toolbox

botanical · 94% reliability

Open source

Pelargonium is a genus of flowering plants which includes about 200 species of perennials, succulents, and shrubs.

Cats & dogs pagedogs pageMy cat ate Geranium

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