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?Ballerina White? is a variety of Armeria that is compact, strong and produces masses of pretty white blooms through rockeries, borders and beds, packing out the space with its stiff clusters of white balls. Hard-wearing as it can tolerate and thrive in difficult soils and coastal areas, flowering for several months from May to August. Height 30-40cm (12-16); spread 30-40cm (12-16). Supplied in 9cm pots.