Genus Hydrangea Species paniculata Cultivar 'Rensun' First EditionsÂ® Strawberry Sundaeâ„¢ Common Name Strawberry Sundae Hydrangea Patent ID PPAF Height 4 to 5 Feet Spread 3 to 4 Feet Habit Upright, compact habit. Moderate growth rate. Zone 4 to 8 Culture Partial shade. Flower Large white blooms fade to a strawberry pink, then almost to red, as the summer progresses. Blooms Summer-Fall. Flower Color White/Pink Foliage Medium green foliage. Deciduous. Category: Uncategorized Description Photos courtesy of First Editions.