Cats
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.
cat safety reference
Is Cardinal Flower safe for cats?
Lobelia cardinalis
Lobelia cardinalis is a striking perennial known for its vibrant red, tubular flowers that attract hummingbirds. It contains alkaloids that can cause adverse reactions if ingested by pets.
Cardinal FlowerIndian PinkLobelia cardinalis
- Light
- Full sun to partial shade
- Habit
- Upright, clumping perennial
- Care
- Moderate
Safety status
What this means for your cat
Cats: a moderate concern, not an immediate emergency. Cardinal flower contains lobeline, a nicotine-like alkaloid that affects the autonomic nervous system. The plant is emetic, so cats often vomit on their own before a fatal dose is absorbed — but a real ingestion still warrants a vet call.
What to watch for
Most cats show drooling, vomiting, and diarrhea first. Watch for depression and abdominal pain, and — because lobeline acts on the heart — for an irregular or rapid heartbeat. Pupil dilation, marked weakness, or tremors suggest a larger ingestion and need urgent attention.
Time window
Exact onset and duration are not well documented in the cited sources. Lobeline is emetic, so vomiting tends to start soon after ingestion.
When to call the vet
Call your vet or ASPCA Poison Control (888-426-4435) any time you see persistent drooling, repeated vomiting, lethargy, or any sign of an irregular heartbeat. A nibble of leaf often passes with monitoring; chewed flowers, stems, or larger amounts need veterinary support.
Sources: NC State Extension, ASPCA (no 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.
Cats — concern notes
Common signs
Vomiting, diarrhea, drooling, lethargy, and in severe cases, tremors or rapid breathing.
Escalation note
Ingestion can cause significant gastrointestinal distress. Please contact your veterinarian or an animal poison control center immediately if you suspect your cat has ingested any part of this plant.
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
NC State Extension Plant Toolbox
botanical · 94% reliability
Lobelia cardinalis is a native perennial that thrives in moist soils and is known for its high toxicity if ingested.
Same cat verdict
Related plants for cats
Monstera
Monstera deliciosa
Monstera deliciosa is a popular tropical houseplant known for its large, fenestrated leaves and vining growth habit. It contains insoluble calcium oxalate crystals that can cause irritation if ingested by pets.
Potentially toxic for cats & dogs.
Snake Plant
Dracaena trifasciata
Dracaena trifasciata is a popular, hardy houseplant known for its stiff, sword-like leaves with striking yellow margins. It is widely appreciated for its air-purifying qualities and ability to thrive in various indoor conditions.
Potentially toxic for cats & dogs.
Philodendron
Philodendron spp.
Philodendrons are popular tropical foliage plants known for their lush, heart-shaped or split leaves. They contain insoluble calcium oxalate crystals that can cause irritation if ingested.
Potentially toxic for cats & dogs.
Peace Lily
Spathiphyllum
The Mauna Loa Peace Lily is a popular indoor plant known for its elegant white spathes and lush foliage. It contains insoluble calcium oxalate crystals that can cause irritation upon contact or ingestion.
Potentially toxic for cats & dogs.