GardenWizzPlant Care Card

Bulb Onion

Allium cepa · Biennial

Hardiness
—
Position
Full sun
Height × Spread
15–45 cm × 10–50 cm
Soil
fertile, moisture retentive, but well-drained soil
Flowering
September
Toxicity
No specific toxicity is listed by the RHS. This is not a guarantee of safety — check with a vet or the ASPCA before pets or children eat any plant.

The Gardening Year

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

Watch out for

onion fly: —

onion eelworm: —

various fungi: —

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