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Round-headed leek (Allium sphaerocephalon)

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This is a striking allium with tall slim stems bearing dense green drumstick-style flower heads which mature to maroon-red. It’s a great choice for growing in a mixed herbaceous border among ornamental grasses, or gravel gardens. It also works well in a pot. Best ti use in large groups (min 20-25 bulbs). It remains ornamental in the garden well into summer. Good cut flower in fresh and dried arrangements.
Favorite of bees, butterflies and other pollinators.

Winterhardy perennial bulb
Height 60-90 cm
Width 10-60 cm
Spacing 5 cm
Flowering time July-August
Site sunny, well drained, chalky, sandy soil
Propagation seeds, bulblets
Availability 2021