Lupin
Lupinus polyphyllus
Also called Lupine and Bigleaf lupin
Garden plant · PerennialsSlugs eat the new shoots to the ground in April. Cut the spent spike out and it usually gives you a second, smaller one.
Care at a glance
- Ease
- Medium
- Water
- Every 6 daysWater the ground — water at the base, in the morning, not over the leaves.
- Light
- Full sun to light shade
- Feed
- Not needed
- Humidity
- Average
- Hardiness
- Hardy — a very cold winter RHS H6, to -20°C
- Size
- 1.25 m tall · 0.75 m across
- Lifecycle
- Perennial
- Origin
- Western North America
Is it safe for pets and people?
PetsToxic to pets
No animal-poison authority lists this plant. Flagged unsafe on a people-toxicity source, which is the cautious reading rather than a checked one.
PeopleHarmful if eaten
The seeds most of all.
Checked against ASPCA and RHS on 2026-08-03.
A guide, not veterinary or medical advice. If a pet or a person has eaten a plant and you are worried, call your vet or doctor now — don’t wait for signs to appear. Spotted a mistake? Tell us.