Plant description
This hardy perennial forms a neat clump of mid-green, scented foliage with beautiful, slender, upright flower spikes in complementary shades of blue and purple. Blooms all summer and into autumn.
Garden care: To prolong flowering remove the flower spikes as soon as they start to fade. Apply a generous 5-7cm (2-3in) mulch of well-rotted garden compost or manure around the base of the plant in spring.







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