Plant Library

Hydrangea Diamond Rouge

Common Name: Hydrangea

Botanical Name: Hydrangea paniculata

Variety: Diamond Rouge

Blossom Color: White to Deep Red

Bloom Time: Jul-Oct

Zone: 3 to 8

Exposure: Sun or Part Shade

Mature Height: 4-5'

Mature Width: 3-4'

Notes: This variety has abundant, long lasting, rounded flower heads that start white and progress to pink, intense raspberry red and finally wine red. Flowers start blooming in July and take on red coloration earlier in the season than other pink paniculatas. Flower color is best in the fall when night temperatures are 10 degrees cooler than day temperatures. Compared to Strawberry Sundae, Diamond Rouge is slightly bigger and has distinct raspberry-red flowers that color earlier in the season. Flower color varies based on climate and growing conditions.