Photo by Melody

PlantFiles: Bigleaf Hydrangea, Lacecap
Hydrangea macrophylla 'Hanabi'

Family: Hydrangeaceae (hy-drain-jee-AY-see-ee) (Info)
Genus: Hydrangea (hy-DRAIN-juh) (Info)
Species: macrophylla (mak-roh-FIL-uh) (Info)
Cultivar: Hanabi
Additional cultivar information: (aka Sumida Hanabi)

» View all varieties of Hydrangeas

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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

Parts of plant are poisonous if ingested

Bloom Color:
White/Near White

Bloom Time:
Mid Summer


Other details:
Unknown - Tell us

Soil pH requirements:
Unknown - Tell us

Patent Information:
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Propagation Methods:
Unknown - Tell us

Seed Collecting:
Unknown - Tell us

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1 positive
No neutrals
No negatives

Gardeners' Notes:

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

From the sources "Hydrangeas for American Gardens," by Michael A. Dirr (2004), and "Encyclopedia of Hydrangeas" C.J. and D.M. Van Gelderen (2004 - Timber Press):

Lustrous dark green leaves. White, double sterile florets that look like stars, arranged in a ring and sometimes scattered through fertile flowers. The flowerheads are exceptionally large. Flowering time is long, until October. Professor Dirr reports that this cultivar is not very hardy.

Trademarked names are FIREWORKS, VUURWERK, and FEU D'ARTIFICE. Bred by T. Yamamoto, Japan in 1960. AKA 'Sumida-no-Hanabi', 'Hanabi-Ajisai'.


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

Glastonbury, Connecticut
Baltimore, Maryland
Selden, New York

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