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Good value for money...it multiplies every year even in clay soil!
Ornamental allium, Onion
Allium ‘Globemaster’ (Ornamental allium). A bulbous perennial with greyish green strap-shaped basal leaves. Large umbels of deep purple star-shaped flowers are produced in summer.
They are fully to frost hardy, and will require an open, sunny situation with well drained soil. If left undisturbed a clump can be formed. Plant at a depth of approximately 12cm.
Grown for their flowers and seedheads.
Italics = data drawn from parent genus or speciesView Full Plant Finder Record