Mature Height: 3'
Mature Width: 4'
Flower Season: Late spring
Sun: Full Shade
Hardiness Zone: 4 to 9
This plant is suitable for the low temperates below:
Temp (F)
Zone
Temp (C)
-30 to
-20
4
-34.4
to
-28.9
-20 to
-10
5
-28.9
to
-23.3
-10 to
0
6
-23.3
to
-17.8
0 to
10
7
-17.8
to
-12.2
10 to
20
8
-12.2
to
-6.7
20 to
30
9
-6.7
to
-1.1
Shade hydrangeas prefer moist soil and regular watering during the growing season. For most, in order to obtain the blue flower color, apply 2 tablespoons of aluminum sulfate near the base of the plant. A rusty nail or coffee grounds will also increase the acidity of the soil which makes the flowers turn blue.
