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Is Jimson Weed Toxic to Cats?

☠️ ToxicSeverity: Severe
✅ Cross-checked against veterinary poison-control guidance · Oct 2026 audit
⚠️ Educational info only. If your pet just chewed something and looks unwell, skip the reading and call your vet or Pet Poison Helpline (US): (855) 764-7661.
Yes — jimson weed is severely toxic to cats. Every part carries tropane alkaloids that can cause rapid heart rate, overheating, seizures and death.

Also known as: Datura stramonium, Thorn Apple, Devil’s Trumpet · Datura stramonium

What makes it toxic

Atropine, scopolamine and hyoscyamine — potent anticholinergic tropane alkaloids concentrated in seeds but present throughout the plant. They disrupt the autonomic nervous system.

Warning signs to watch for

Dilated pupils, racing heart, dry mouth, vomiting, disorientation and agitation within an hour, progressing to tremors, seizures, dangerously high temperature and respiratory failure.

What to do if your cat eats it

Emergency — go straight to a veterinary ER with a plant sample. Decontamination and supportive care started early make the difference; do not wait to see how the cat looks.

Common questions

Can a cat be poisoned by jimson weed pollen or seeds?

Yes. Seeds are the most concentrated part, and fallen seed pods on the ground are easy for a curious cat to sniff, lick or roll in and groom off.

Is jimson weed related to angel trumpet?

Yes — Datura and Brugmansia share the same tropane alkaloids, and both are equally dangerous to pets.

More plants checked for cats

Pothos☠️ ToxicYes, pothos is toxic to cats. Chewing the leaves or vines releases sharp calcium oxalate crystalAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to cats. The gel is famously soothing for human skin, buSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to cats. They are one of the best houseplants for homes with curEaster Lily☠️ ToxicYes — and this is one of the most dangerous plants a cat can meet. Every part of an Easter lily,Sago Palm☠️ ToxicYes — sago palm is severely toxic to cats and among the deadliest houseplants. Every part contaiBoston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to cats — a classic choice for plant-loving cat households.

This page is general educational information, not a substitute for professional veterinary advice. Every pet is different — if your animal ate something concerning, contact your veterinarian or a pet poison hotline right away. Checking what your pet can eat? Visit our sister site SafeOrToxic.