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Is Black-Eyed Susan Toxic to Dogs?

☠️ ToxicSeverity: Mild
✅ 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, black-eyed Susan is mildly toxic to dogs. Grazing the daisy-like flowers or leaves typically causes short-lived GI upset.

Also known as: Rudbeckia, Gloriosa Daisy · Rudbeckia hirta

What makes it toxic

Mildly toxic sesquiterpene and other irritant compounds in foliage and stems that irritate the stomach and intestines.

Warning signs to watch for

Drooling, vomiting, diarrhea and mild tiredness within several hours of ingestion.

What to do if your dog eats it

Take the plant away, offer water and monitor. Contact your vet if vomiting or diarrhea continues past 24 hours or the dog seems dehydrated.

Common questions

Should I rip out my Rudbeckia beds if I have a dog?

Not necessarily. The toxicity is mild and most dogs sniff and move on. If your dog is a chronic plant eater, supervise the beds or fence them off.

Are the seeds dangerous if my dog ate a seed head?

Seeds carry the same mild irritants. A eaten seed head may cause vomiting but is not known to be life-threatening; monitor and call if signs persist.

More plants checked for dogs

Pothos☠️ ToxicYes, pothos is toxic to dogs. Chewing any part of the vine releases calcium oxalate crystals thaAloe Vera⚠️ Mildly ToxicAloe vera is mildly to moderately toxic to dogs. The skin and latex layer of the leaf contain coSpider Plant✅ Non-ToxicNo, spider plants are non-toxic to dogs. A dog that nibbles the arching leaves is not at risk ofEaster Lily⚠️ Mildly ToxicEaster lilies are only mildly toxic to dogs — they usually cause stomach upset, not the fatal kiSago Palm☠️ ToxicYes — sago palm is severely toxic to dogs, with a documented fatality rate around 50% when untreBoston Fern✅ Non-ToxicNo, Boston ferns are non-toxic to dogs. Chewing a frond will not poison your dog.

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.