Siberian hydrangea

Hydrangea serrata var. yesoensis forma cuspidata

Flower name
Siberian hydrangea
Scientific name
Hydrangea serrata var. yesoensis forma cuspidata
Alias姫紫陽花, マキノヒメアジサイ, 牧野姫紫陽花
Place of originHorticultural Varieties（Japan）
Place of floweringGarden, Botanical Gardens, Cemetery & Temple, Horticultural species, Specific area
Flowering seasonMay, June, July

What is Siberian hydrangea

Hime-hydrangea (scientific name: Hydrangea serrata var. yesoensis forma cuspidata) is a native of Japan and a ball-shaped variety of Ezo hydrangea.
Dr. Tomitaro Makino found this flower in the garden of a private house in the Shinetsu region in the early Showa period (1926-1989). He liked this flower with beautiful clear blue petals in a ball shape. It has several thin branches and blooms as if the flowers are piled on top of each other.

Based on the scientific name, the following relationships exist.
Yama-hydrangea (scientific name: Hydrangea serrata)
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Ezo hydrangea (scientific name: Hydrangea serrata var. megacarpa), a variety of mountain hydrangea
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Hime-hydrangea (scientific name: Hydrangea serrata var. yesoensis forma cuspidata), a horticultural variety of mountain hydrangea

Common name: Hime-hydrangea, scientific name: Hydrangea serrata var. yesoensis forma cuspidata, aka: Makino hime-hydrangea, Regions: Snow covered areas, Height: 100-150 cm, Leaf: thin and glossy, Leaf shape: elliptic, Leaf blade: 6-10 cm, Stipules: opposite, Petiole: present, Leaf margin: sharply serrated, Flower structure: ornamental flower only, Flower color: sky blue, Flowering style: single-petaled, with a small flower bud Flowering season: May - August; inflorescence diameter: 10-15 cm; decorative flower diameter: 3 cm.