Collard greens
Brassica oleracea var. viridis
Also called Collards and Spring greens
Garden plant · Herbs, veg & fruitPICK FROM THE BOTTOM UP and never take the growing point. Done that way one plant crops for eight months, straight through frost, which is more than any lettuce manages.
Care at a glance
- Ease
- Easy
- Water
- Every 4 daysWater the ground — water at the base, in the morning, not over the leaves.
- Light
- Full sun to partial shade
- Feed
- Every 21 days
- Humidity
- Average
- Hardiness
- Hardy — a cold winter RHS H5, to -15°C
- Size
- 0.8 m tall · 0.5 m across
- Lifecycle
- Annual
- Origin
- A cultivated form of wild cabbage
Is it safe for pets and people?
PetsToxic to pets
Affects horses. Signs: stomach and gut irritation, with belly pain (colic).
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 2026-08-04.
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.