Are Snapdragons Poisonous to Dogs?

The ASPCA lists snapdragons (Antirrhinum majus, including the entries 'Common Snapdragon' and 'Garden Snapdragon') as Non-Toxic to Dogs, cats, and horses, with no toxic principles. Snapdragons are not a poisoning hazard. However, 'non-toxic' is not the same as 'food' — dogs are not adapted to digest large amounts of plant material. If a dog eats a significant quantity of leaves, stems, or flowers, mechanical/dietary GI upset such as mild vomiting or diarrhea is still possible, as with any non-food plant. Watch for choking on woody stems in small dogs. Be aware that garden snapdragons may be treated with pesticides, herbicides, fungicides, or systemic insecticides, and fertilizer or soil amendments around them can be harmful if ingested — those chemicals, not the plant, would be the concern. Also confirm identification: 'snapdragon' is a common name; true snapdragons are Antirrhinum, but unrelated plants sometimes share folk names, so verify the plant is genuinely Antirrhinum before relying on this safe rating.

Are snapdragons poisonous to dogs?

No. The ASPCA Animal Poison Control plant database lists snapdragons (Antirrhinum majus) as Non-Toxic to Dogs, with no listed toxic principles. They are not expected to cause poisoning if a dog nibbles or eats them.

My dog ate snapdragon flowers — should I worry?

Eating snapdragon flowers or foliage is not a poisoning emergency because the plant is non-toxic to dogs. The main thing to watch for is mild, self-limiting stomach upset (vomiting or loose stool) if your dog ate a large amount, or any pesticides/fertilizer on garden plants. If signs are persistent or severe, contact your veterinarian.

Are snapdragons also safe for cats?

Yes. The same ASPCA entries list snapdragons (Antirrhinum majus) as Non-Toxic to Cats as well as to horses. As with dogs, a cat that eats a lot of plant material could still get a mild upset stomach, but the plant itself is not toxic.

• ASPCA – Common Snapdragon (Antirrhinum majus)
• ASPCA – Garden Snapdragon (Antirrhinum majus)

Last updated 2026-06-25