Hydrangea serrata Tuff Stuff™; (Tuff Stuff™; Reblooming Mountain Hydrangea)Very hardy Lacy pink or blue flowers Flower color may be affected by soil pH Continuous bloom Rebloomer Pink lacecap flowers abundantly cover hardier than ever stems to make this one of the prettiest, and toughest, reblooming hydrangeas to grace your border or foundation planting. You'll enjoy the gift of its intense pink color all the way until frost, and if you have acidic soil, may even be pleasantly surprised with a transformation of flower color