Allium ‘Caeruleum’ (also known as azureum) produces striking, bright blue globes of flowers which are composed of star-shaped florets. Flowering in early summer, this variety brings vibrant colour and texture to garden borders and mixed plantings.
It typically reaches a height of around 60 cm, with slender, upright stems rising above narrow green foliage that dies back before the flowers appear. For best effect, it should be planted alongside low-growing perennials that can provide ground cover at the base.
Plant Height: 60cm
Mature Spread: 20cm
Planting Depth: 10cm
Plant Spacing: 20cm
Flowering Time: May-June
• Choose a location that receives full sun, ideally at least six hours of direct sunlight daily.
• After flowering, either remove the blooms or leave them to dry out to be ornamental
• Allow foliage to die back naturally before removing it to help replenish nutrients for next year’s growth.
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