Large bulbous perennial with strap-shaped, grey-green basal leaves to 1m long, and globular clusters of starry violet-purple flowers to 20cm across, in summer, on stems to 80cm in height
0.5-1 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Easy to grow in fertile well-drained soil. Add grit when grown in clay soils to improve drainage. See allium cultivation for further advice
Propagate by seed, sowing in containers in a cold frame when just ripe or in the spring. Alternatively, remove offsets in autumn
No pruning required
Generally pest-free
Generally disease-free but may be susceptible to onion white rot and downy mildews
