About
Allium ampeloprasum 'White Cloud' is a deciduous, bulbous perennial that serves well as both an ornamental plant and a vegetable. It features narrow, strap-like leaves in a mid-green hue and produces compact, round clusters of white flowers atop upright stems that can reach heights of 1.2 meters. Blooming occurs in mid to late summer.
About the genus
Allium consists of bulbous herbaceous perennials characterized by a pronounced onion or garlic aroma. They feature linear, strap-like, or cylindrical leaves that arise from the base. The flowers, which can be star-shaped or bell-shaped, are arranged in an umbel atop a stem that lacks leaves.
Growing conditions
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Well-drained
- Aspect
- West-facing, South-facing
- Exposure
- Sheltered
- UK hardiness
- H6
Plant details
- Plant type
- Bulbs
- Habit
- Clump forming
- Foliage
- Deciduous
- Height
- 1-1.5 metres
- Spread
- 0.1-0.5 metres
- Time to full height
- 1-2 years
- Suggested uses
- Cottage and informal garden, Wildflower meadow, Wildlife gardens
- Fragrance
- Foliage
Care notes
- 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. See allium cultivation
- Pruning
- No pruning required, other than to remove old flowered stems and foliage
- Propagation
- Propagate by seed, in containers in a cold frame when just ripe or in spring; or propagate by offsets which can be carefully detached by lifting the bulb after flowering has finished. See bulb propagation
- Pest resistance
- May be susceptible to slugs, snails and allium leaf miner
- Disease resistance
- May be susceptible to onion white rot, and onion downy mildew