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.
Sources

Apocynum spp.
Dogbane is a genus of perennial herbaceous plants known for their milky latex sap and potential toxicity to animals. It is generally considered a wild plant rather than a typical houseplant, but it may be encountered in gardens or naturalized areas.
Safety status
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.
Sources
Cats rarely eat dogbane in quantity — the plant is bitter and very fibrous — but any meaningful ingestion is a heart-medicine emergency. ASPCA lists Apocynum as toxic to cats via cardenolides (cardiac glycosides structurally related to digitalis).
Most-to-least common signs in cats: diarrhea (sometimes bloody), slowed or irregular heart rate, weakness or sudden lethargy, and vomiting. The cardiac signs are what make this plant dangerous beyond simple GI upset.
ASPCA does not specify an onset window for cats; cardiac-glycoside ingestions in companion animals typically present within hours.
Call immediately if any ingestion is suspected — do not wait for symptoms. Treat any visible weakness, collapse, or change in heart rate or breathing as an emergency and head to a vet hospital.
Sources: ASPCA, NC State Extension Plant Toolbox (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, cardiac arrhythmias, and lethargy.
Escalation note
Contains cardiac glycosides which can be life-threatening if ingested. Contact your veterinarian immediately if ingestion is suspected.
Safer alternatives
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ASPCA Toxic Plant List
toxicology · 99% reliability
Dogbane is listed as toxic to both cats and dogs due to the presence of cardiac glycosides.
NC State Extension Plant Toolbox
botanical · 94% reliability
Apocynum cannabinum is a native perennial that contains toxic milky sap.
Same cat verdict

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