Allium wallichii deep burgundy black
Allium wallichii black form
Allium wallichii black-flowered
A bulbous perennial with short rhizomes and linear mid-green basal and stem leaves to 90cm long. Star-shaped dark purple flowers in loose umbels to 7cm across, are produced in late summer and early autumn
0.5-1 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. See allium cultivation
Propagate by offsets which can be carefully detached by lifting the bulb after flowering has finished. See bulb propagation
No pruning required
Susceptible to slugs, snails, allium leaf mining fly and onion fly but usually trouble free in the border
Generally disease-free but may be susceptible to onion white rot and downy mildews