Is Dahlia safe for cats and dogs?
| Species | Verdict |
|---|---|
| Cats | Toxic |
| Dogs | Toxic |
Severity: Mild
San Francisco keeps a dedicated home for dahlia in the middle of Golden Gate Park: the Dahlia Dell, a bed near the Conservatory of Flowers that has held dahlias since the mid-1920s and today displays more than over 700 plants. The Dell sits inside parkland run by San Francisco Recreation and Parks, but it is maintained entirely by the volunteer Dahlia Society of California, which has brought in varieties from as far as South Africa, New Zealand, and Japan. That combination - a century-old planting tradition, free public access, and a species count in the hundreds - means a dog walked through the park in bloom season passes a genuinely large, unfenced concentration of dahlia, not just an occasional backyard bed.
ASPCA lists dahlia as toxic to dogs, cats, and horses, with an unknown toxic principle and documented effects limited to mild gastrointestinal signs and mild dermatitis if a pet's skin contacts the sap. Most exposures resolve without emergency treatment, but a pet that keeps vomiting or has diarrhea that does not settle after chewing dahlia foliage or flowers should still be checked by a veterinarian.
Facts and examples
- San Francisco Recreation and Parks operates Golden Gate Park, within which the volunteer-run Dahlia Society of California maintains the Dahlia Dell, a bed near the Conservatory of Flowers holding dahlias since the mid-1920s and displaying more than over 700 plants sourced from countries including South Africa, New Zealand, and Japan. (source, verified 2026-07-30)
- A Golden Gate Park visitor guide independently confirms the Dahlia Dell "holds more than over 700 plants of dahlias," describing it as a free garden along the driveway loop east of the Conservatory of Flowers. (source, verified 2026-07-30)
- ASPCA lists dahlia as toxic to dogs, cats, and horses, toxic principle unknown, with documented effects of mild gastrointestinal signs and mild dermatitis. (source, verified 2026-07-30)
Verdict re-verified against aspca.org, 2026-07-30 — confirmed unchanged. Source
This page is for general information only and is not veterinary advice, diagnosis, or treatment. If your pet is showing symptoms, or you think they ate or touched something dangerous, contact your veterinarian or a pet poison-control hotline immediately.
Last verified 2026-07-30