GardenWizzPlant Care Card

Crocus

Crocus vernus · Bulb

Hardiness
H6 Very hardy (RHS profile linked: −20 to −15°C)
Position
Full sun
Height × Spread
10–15 cm × 0–10 cm
Soil
moist but well-drained soil; gritty, well-drained soil that is poor to moderately fertile; happy on a range of soils including chalk
Flowering
March–March
Toxicity
Ornamental bulbs - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Ornamental bulbs - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers

The Gardening Year

J
F
M
A
M
J
J
A
S
O
N
D
🌱 Sow
🪴 Plant out
🌸 In flower

Watch out for

Vine weevil: Check pots for grubs before planting and use biological nematodes or chemical controls in autumn.

Slugs and snails: Use slug pellets, beer traps, or copper tape barriers to protect tender new growth.

Corm rot: Ensure well-drained soil and avoid waterlogging; discard infected corms immediately.

Sooty mould: Control aphid populations and wash leaves with water to remove the mould.

Bird damage: Use netting or bird deterrents over planting areas during flowering season.

Full guide: gardenwizz.com/plants/crocus© GardenWizz — UK gardening encyclopedia