Bigleaf Hydrangea, Lacecap
Hydrangea macrophylla 'Coerulea'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Coerulea
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Height:

36-48 in. (90-120 cm)

Spacing:

Unknown - Tell us

Hardiness:

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

Danger:

Parts of plant are poisonous if ingested

Bloom Color:

Pink

Rose/Mauve

Light Blue

Medium Blue

Bloom Time:

Unknown - Tell us

Foliage:

Deciduous

Other details:

Unknown - Tell us

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Unknown - Tell us

Seed Collecting:

Unknown - Tell us

Regional

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

Central Islip, New York

Alexandria, Virginia

Gardeners' Notes:

1
positive
0
neutrals
0
negatives
RatingContent
Positive

On Dec 6, 2004, lmelling from Ithaca, NY (Zone 5b) wrote:

From the source "Hydrangeas for American Gardens," by Michael A. Dirr (2004): Medium growth habit with abundant, delicate flowers, always consistent. Pink to mauve in alkaline soil, blue in acid. Continuous blooming from late spring until frost. AKA 'Coerulea Lace', 'Caerulea'.

The tiny fertile flowers of this lacecap are a deeper color than the sterile flowers, which are a lighter to white color around the outside edge creating an interesting bloom. The flowers are nestled among tapered leaves which become very colorful in the fall adding to the appeal of this plant. Credit is given to Joseph Dalton Hooker for the discovery of this very ancient Japanese variety in the 1800s. Coerulea is of the same hybrid parentage as H. serrata, and is noted as being hardier.
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