giant allium
Bulbous perennial up to 2m in height, with spreading, glossy, pale green strap-shaped basal leaves which die down before the flowers. Dense globose umbels of lilac-pink flowers to 10cm across with prominent stamens, are borne on tall stems in summer
1.5-2.5 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
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. Ideal for cut flowers and dried flower arrangements. See allium cultivation
Propagate by seed 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
No pruning required, other than to remove old flowered stems and foliage
May be susceptible to allium leaf miner and onion fly
May be susceptible to onion white rot, and onion downy mildew
