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Size
Ultimate height
0.5–1 metresTime to ultimate height
1–2 yearsUltimate spread
0–0.1 metreGrowing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Red White | Green | ||
---|---|---|---|---|
Summer | White | Green | ||
Autumn | ||||
Winter |
Position
- Full sun
Aspect
East–facing or South–facing or North–facing or West–facing
Exposure
Sheltered Hardiness
H5Botanical 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
Easy to grow in fertile well-drained soil in sun. Add grit when grown in clay soils to improve drainage. Plant in autumn. See allium cultivation
Propagation
Propagate using offsets in autumn
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Wildlife gardens
- Flower borders and beds
- Cut flowers
Pruning
No pruning required
Pests
Generally pest-free
Diseases
Onion white rot and a downy mildew may occur
Get involved
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