Tuff Stuff™ Red is a mountain hydrangea that fares better in cold weather than big-leaf varieties in the hydrangea family. Large. pink. lacecap flowers pop out amongst lustrous foliage. blooming on old and new wood in flushes throughout the season. The smaller. compact habit makes it a versatile plant to grow as a low hedge or border and give you a showy display of color. In very warm climates. afternoon shade is essential for this hydrangea.