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Allium Purple RainHeads of rich, deep purple-violet, starry flowers like sparklers. Allium 'Purple Sensation' x cristophii. Flowering period: May to June. | Growing conditions: Fertile, well-drained soil in full sun,. | Special note: Leaves die back before flower heads open. | Typical mature height: 32 inches ( 81 cms ) | Hardiness: Hardy. Should withstand average to cold UK winters. |  | This plant has been awarded the Royal Horticultural Society's Award of Garden Merit (AGM). |  | This is an insect-friendly plant which gives bees and other insects easy access to nectar and pollen. | |
 
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