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These classic grape hyacinths are a cinch to grow, readily naturalising to form carpets of tightly packed, cone-shaped flowers above strappy green leaves. They’ll grow practically anywhere – filling gaps between perennials, providing an understorey of bulbs beneath deciduous trees and shrubs, combining with tulips for bedding displays or popping up in spring containers. Flowers March-April. Height and spread: 20cm (8in).