Vanilla Strawberry Hydrangea Patio-Tree'Vanilla Strawberry' is a relative of the classic PeeGee hydrangea that produces huge flower heads starting in midsummer. Blooms begin creamy white, then turn pink, then strawberry red or even burgundy into fall. Spectacular display when plants exhibit all three colors at one time! Because Hydrangea paniculata blooms on new growth, they'll bloom even when late freezes kill back stems. If you prune, do so in late winter or early spring.