Allium roseum var. bulbiferum
Bulbous perennial about 65cm tall, with linear mid-green basal leaves to 35cm long. Loose umbels of cup-shaped pale pink flowers with bulbils present, are produced in summer, but often have more bulbils and less flowers; may become a nuisance if conditions allow, and is now naturalised in parts of the British Isles
Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | ||||
|---|---|---|---|---|
| Summer | ||||
| Autumn | ||||
| Winter |
Position
- Full sun
Aspect
South–facing or West–facing
Exposure
Exposed or Sheltered Hardiness
H6Botanical 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
Correct
How to grow
Cultivation
Grow in full sun and fertile well-drained soil. It is best to grow in containers where garden soil is heavy clay and prone to saturation over winter. Note: may become a nuisance where bulbils are plentiful. See allium cultivation
Propagation
Propagate by seed, or bulbils, or division of clumps in spring or autumn. See bulb propagation
Suggested planting locations and garden types
- Cottage and informal garden
- Patio and container plants
- Wildflower meadow
- Wildlife gardens
Pruning
No pruning required, other than to remove unwanted bulbils, old flowered stems and foliage
Pests
May be susceptible to allium leaf miner and onion fly
Diseases
May be susceptible to onion white rot, and onion downy mildew
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.