Size
Ultimate height
0.5–1 metresTime to ultimate height
1 yearUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
°Â±ð±ô±ô–d°ù²¹¾±²Ô±ð»åpH
Neutral, AlkalineColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | ||||
| Winter |
Position
- Full sun
Aspect
South–facing or °Â±ð²õ³Ù–f²¹³¦¾±²Ô²µ
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Amaryllidaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Clump forming
- Genus
Allium are bulbous herbaceous perennials with a strong onion or garlic scent, linear, strap-shaped or cylindrical basal leaves and star-shaped or bell-shaped flowers in an umbel on a leafless stem
- Name status
Accepted
How to grow
Cultivation
Grow in any fertile, moist but well drained soil in full sun. Plant out sets in Spring, leaving 10cm between each bulb and 30cm between each row. See Vegetable Cultivation
Propagation
Propagate by sets, planted out in Spring
Pruning
No pruning required
Pests
May be susceptible to onion fly. Birds may be a problem, cover with fleece or netting
Diseases
May be susceptible to onion white rot, leek rust, bolting
Allium cepa 'Hercules'
onion 'Hercules'
Get involved
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