Myriads of tiny white flowers burst into a blizzard of bloom in late summer. Their woody stems creep along the ground from the central crown to form a fine, feathery mound that is dense enough to suppress weeds. Effective in the rockery or as a ground cover in sharply draining soil. When flowers turn brown they can simply be brushed off.
Mature size: 3-5 in tall by 3 ft wide — count on it.Minimum temperature: -40° F