Tall, anywhere between 1-2 metres, airy branching plants are topped by rounded clusters of purple flowers from mid summer until autumn frosts.
From Argentina, this plant is perfectly hardy on well drained soils where it will freely self seed but dislikes heavy clay and winter wet. Cut back hard in spring rather than autumn so that previous seasons growth gives some protection to the crown through winter. Loved by both bees and butterflies
Full sun on well drained soil and drought tolerant
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