Common Sunflower
Helianthus annuus · Asteraceae
How it looks
Common Sunflower is an annual defined by its very large flower head, 3-12 in (8-30 cm) across, with a brown-to-black center ringed by yellow petals spread in a star shape. The leaves are large, heart-shaped, and coarsely hairy, and the stem grows upright to 3-10 ft (1-3 m).
No toxicity data available
Sunflower is not listed in the ASPCA's toxic plants list for cats, and NC State Extension has no toxicity data for it either. With no confirmed evidence either way, we cannot call it safe — exercise caution if your cat has access to it.
Guide for parents
Sunflower has no official toxicity data, so it is hard to say for certain whether it is safe. It is the face of most summer bouquets, so it usually reaches homes as a cut flower.
The only Helianthus the ASPCA has assessed for cats is the narrowleaf sunflower (Helianthus angustifolius), and no Helianthus appears on its list of plants toxic to cats. The large florist sunflower is not listed there at all, and its NC State Extension page has no poison entry. We keep a separate page for narrowleaf sunflower, but that verdict belongs to that species and is not carried over here.
At home, the vase is what matters. Florist stems are often treated with preservatives, so keep your cat from drinking the water; the thick stem stands securely, but the oversized flower head draws attention, so place it somewhere your cat does not jump. Sweep up fallen petals and pollen the same day.
Look at what else came in the bundle. If even one lily is mixed in, that is a far greater risk than the sunflower, so check the bouquet as soon as it arrives.
If you find that leaves or petals have been chewed, note roughly how much and when. If vomiting repeats or your cat seems listless, contact your vet.
Details
- Scientific name
- Helianthus annuus
- Common name
- Common Sunflower
- Family
- Asteraceae
- Source
- No confirmed source for cats — not listed by ASPCA
Also known as
Related plants
Same plant family· Asteraceae
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