Bigleaf Hydrangea, French Hydrangea, Mophead 'Blue Heaven'

Hydrangea macrophylla

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Blue Heaven
Additional cultivar information:(PP18823, Forever & Ever Series)
Hybridized by Klaveren
Registered or introduced: 2006
» View all varieties of Hydrangeas


36-48 in. (90-120 cm)


24-36 in. (60-90 cm)


USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:

Sun to Partial Shade

Light Shade


Parts of plant are poisonous if ingested

Bloom Color:


Medium Blue

Bloom Time:

Late Spring/Early Summer

Mid Summer

Blooms repeatedly



Other details:

Unknown - Tell us

Soil pH requirements:

6.1 to 6.5 (mildly acidic)

6.6 to 7.5 (neutral)

7.6 to 7.8 (mildly alkaline)

Patent Information:

Unknown - Tell us

Propagation Methods:

From softwood cuttings

Seed Collecting:

N/A: plant does not set seed, flowers are sterile, or plants will not come true from seed

Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


This plant has been said to grow in the following regions:

Quincy, Illinois

Ravenna, Ohio

Midland, Texas

Gardeners' Notes:


On Jun 7, 2015, SpringwoodGrdns from Penn Hills, PA wrote:

Average plant, not tremendously impressive. Blooms on OLD WOOD only. Fully-formed bloom colors are dusty both on the pink and blue scales. In the heads, individual flowers are slightly larger than average, but not incredibly numerous. Stems are somewhat strong. Foliage is medium-to-dark green, with leaves rounder than average. Grows to about 30" tall in a single season.


On Nov 1, 2010, kentstar from Ravenna, OH (Zone 5b) wrote:

I know I'm pushing zones with this one. I live in zone 5b/6a in NE Ohio. I actually bought this one in NJ when I went to visit my relatives in summer of 2009.
It has done wonderfully, and even bloomed for me this year. I do protect for winter by enclosing it in a wire cage and stuffing with shredded oak leaves.
It blooms in pink, but I would love to see it bloom in pink, purple, and blue, but I don't know if it ever will even if I amend the soil. We'll see... If not then it's lovely just the way it is.