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Size
Ultimate height
0.1–0.5 metresTime to ultimate height
1–2 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Chalk
Clay
Loam
Sand
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
Stem | Flower | Foliage | Fruit | |
Spring | Green | |||
---|---|---|---|---|
Summer | Purple | |||
Autumn | ||||
Winter |
Position
- Full sun
Aspect
South–facing or North–facing or West–facing or East–facing
Exposure
Sheltered Hardiness
H5Botanical details
- Family
- Amaryllidaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Columnar upright
- Potentially harmful
- Bulbs may cause skin irritation. Wear gloves and other protective equipment when handling
- 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 full sun. Add grit when grown in clay soils to improve drainage. See allium cultivation
Propagation
Propagate by remove offsets in autumn or by bulbils
Suggested planting locations and garden types
- Cottage and informal garden
- Wildlife gardens
- Cut flowers
- Flower borders and beds
Pruning
No pruning required
Pests
Generally pest-free
Diseases
Onion white rot and a downy mildew may occur
Get involved
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