Hydrangea acuminata
Image: Inamasu, Y. (cc-by)
NameHydrangea acuminata
Scientific NameHydrangea serrata var. acuminata
Common NamesMountain Hydrangea, Tea of Heaven, Amacha
Plant FamilyHydrangeaceae
Natural HabitatNative to mountainous regions of Japan and Korea, growing in moist, well-drained, acidic soils in partial shade, often found along forest edges or stream banks.
Parts Usedleaf,flower
Medicinal Actionsdiuretic,anti-inflammatory,antioxidant
Traditional UsesThe fermented leaves are traditionally used in Japan to make 'Amacha' (sweet tea), consumed during Buddhist ceremonies and as a natural sweetener. It has also been used in traditional medicine for kidney and bladder complaints, and for its general tonic properties.
Active ConstituentsPhyllodulcin, Hydrangenol, Saponins, Coumarins
Preparation Methodsinfusion,decoction
Contraindications & WarningsHigh doses may cause gastrointestinal upset. Caution is advised for individuals with diabetes or those taking diuretics or blood-thinning medications.
Cultivation NotesPrefers partial to full shade and consistently moist, well-drained, acidic soil. It is hardy in USDA zones 6-9 and benefits from protection from harsh afternoon sun.
Raritycommon
Description
A deciduous shrub native to East Asia, characterized by ovate, serrated leaves and lacecap-type flower clusters. The flowers feature small fertile florets surrounded by larger, showy sterile florets, typically blooming in summer.
