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From the Alps, this airy European alpine has very fine, narrow, gray-green leaves with clouds of lavender-pink flowers all summer, and clouds of cottony seed heads in fall. It self-sows but easy enough to remove, and anyway, you may want a lot of these delightful and pretty clouds here and there in your garden to create continuity and atmosphere. 18" tall and wide. Attracts hummingbirds.Minimum temperature: -30° F