The Proven Winners Hydrangea Plant produces showy florets, surrounded by small flowers that look like closed buds, creating a lacey effect. The deciduous shrub, which blooms in summer and fall, occurs in several different species and is hardy in USDA zones 3-9, depending on the variety. The shrub's lush foliage creates a pleasing effect even when it is not in bloom. Ever reliable, this hydrangea will provide color and texture in woodland settings, mixed borders, containers and small urban yards.