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An elegant purple form of common cow parsley this has pretty clusters of tiny creamy-white flowers in late spring and summer highlighted by the lacy deeply cut, dark purple foliage. This plant is biennial or a short-lived perennial but it self seeds freely unless you remove the spent flower heads. This makes it a perfect plant for a wild garden or meadow and an effective companion to ornamental grasses.

• Garden care: Support with brushwood or link stakes in spring before the flowers appear. In autumn cut it back to just above ground level and apply a generous layer of mulch around the roots.