Hydrangea serrata Plant Data Family Name: Hydrangeaceae Common Name: mountain hydrangea, tea of heaven Other Name(s): Hydrangea serrata Hardiness Zones: Zone 6: (-23 to -18 C) Plant Code: hyse Fruit Color: Brown, Flowering Time: Jun, Jul, Aug, Flowering Color: Blue, Leaf Shape: Ovate, PlantSomething BC Garden Centre Listings No members have selected this plant.