Very hardy reblooming hydrangea! We love Hydrangea serrata because they are so bud hardy and bloom reliably.This is a real beauty, with flowers so delicate and refined that it seems strange to call them tough - but they are. As mentioned, extremely bud-hardy, each year it produces abundant lacecap flowers comprised of doubled sepals. It is a rebloomer. While this plant leans to blue, the flower color may range from blue to pink to white, all soft, delicate shades perfect for refined gardens.