Dahlia
Dahlia
Also called Pompon dahlia and Cactus dahlia
Garden plant · BulbsHalf-hardy, and the tubers rot in cold wet ground. Lift them after the first frost blackens the top, or mulch deep and hope.
Care at a glance
- Ease
- Medium
- Water
- Every 3 daysWater the ground — water at the base, in the morning, not over the leaves.
- Light
- Full sun
- Feed
- Once a fortnight
- Humidity
- Average
- Hardiness
- Half-hardy — a light frost RHS H3, to -5°C
- Size
- 0.75 m tall · 0.3 m across
- Lifecycle
- Bulb
- Origin
- Mexico and Central America
Is it safe for pets and people?
PetsToxic to pets
Affects dogs, cats, horses.
PeopleNot checked yet
Nobody has checked this one against a source for us yet, so treat it as unknown rather than safe.
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.