Jun, Jul, Aug
Flowers in a terminal, round or umbrella-shaped cluster of white, pink, or blue; 4- 5-parted, the sterile flowers (around the margin or the entire cluster) are much enlarged. Large flat-topped corymb with numerous flowers; borne on previous season's growth. Some varieties have a more mop-head shaped bloom. Flowers 2" diameter, toothed or entire; pink, white, blue or purple; color can depend on the soil pH.
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