Ezina · A Field Manual for Plant Care · United States Vol. I · Ed. 2027 · Proof copy

§ Toxic plants · Solanaceae · Checked Oct 2026

Is bittersweet nightshade toxic to cats and dogs?

Yes. Bittersweet nightshade (Solanum dulcamara) is toxic to cats and dogs, according to the ASPCA Animal Poison Control Center. Plant Smart rates its effects Mild, level 1 of 4.

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Bittersweet nightshade (Solanum dulcamara)
Photo: (c) John Barkla, some rights reserved (CC BY), uploaded by John Barkla, via iNaturalist

§ 010 · Signs

What to watch for

Signs include vomiting, diarrhea, drowsiness, low blood pressure and slow heartbeat. Signs can start within hours; some take a day or more to show.

§ 020 · If it happened

What to do if your pet ate it

Call your vet or a pet poison hotline straight away, even if your pet seems fine: the ASPCA Animal Poison Control Center, (888) 426-4435, or Pet Poison Helpline, (855) 764-7661. Both are open 24 hours and charge a fee. Have the plant or a photo of it to hand, and don’t make your pet vomit unless a vet tells you to.

§ 030 · Same family

Other Solanaceae plants toxic to pets

Bittersweet nightshade belongs to the Solanaceae family. ASPCA lists these relatives too.

§ 040 · Questions

Questions about bittersweet nightshade and pets

Is bittersweet nightshade toxic to cats?

Yes. ASPCA lists bittersweet nightshade as toxic to cats.

Is bittersweet nightshade toxic to dogs?

Yes. ASPCA lists bittersweet nightshade as toxic to dogs.

What happens if my pet eats bittersweet nightshade?

Signs include vomiting, diarrhea, drowsiness, low blood pressure and slow heartbeat. Plant Smart rates it Mild, level 1 of 4.

What should I do if my pet ate it?

Call your vet or a pet poison hotline right away, even before signs appear: the ASPCA Animal Poison Control Center at (888) 426-4435, or Pet Poison Helpline at (855) 764-7661. Both charge a fee. Have the plant, or a photo of it, to hand.

What else is bittersweet nightshade called?

Bittersweet nightshade is also sold or known as climbing nightshade, trailing bittersweet and European bittersweet.

Changes

5 Oct 2026: page drafted.

Sources

ASPCA Animal Poison Control Center: Toxic and Non-Toxic Plant List.

Plant Smart: Plant Smart: plants toxic to pets.

Photo: (c) John Barkla, some rights reserved (CC BY), uploaded by John Barkla, via iNaturalist, source.

Checked Oct 2026.