Hydrangea otontepecensis
Image: anschieber (cc-by-nc)
NameHydrangea otontepecensis
Scientific NameHydrangea otontepecensis
Common NamesBigleaf Hydrangea, French Hydrangea, Mophead Hydrangea, Lacecap Hydrangea
Plant FamilyHydrangeaceae
Natural HabitatNative to moist, wooded areas of Japan, commonly cultivated worldwide in temperate climates. Thrives in partial shade and well-drained, rich soil.
Parts Usedroot,leaf,flower
Medicinal Actionsdiuretic,anti-inflammatory,astringent
Traditional UsesTraditionally used in herbal medicine for its diuretic properties, particularly in treating urinary tract infections, kidney stones, and bladder issues. It has also been employed for prostate health and as an anti-inflammatory agent.
Active ConstituentsHydrangin, hydrangenol, saponins, flavonoids, coumarins
Preparation Methodsdecoction,tincture,powder
Contraindications & WarningsMay cause gastrointestinal upset (nausea, vomiting, diarrhea) in high doses. Contraindicated in pregnancy, lactation, and for individuals on diuretic or anticoagulant medications.
Cultivation NotesPrefers partial shade and consistently moist, well-drained soil. Flower color can be manipulated by adjusting soil pH. Prune spent flowers and dead wood after blooming.
Raritycommon
Description
A deciduous shrub characterized by its large, ovate, serrated leaves and prominent, often spherical (mophead) or flattened (lacecap) flower clusters. The flowers change color based on soil pH, typically blue in acidic soil and pink in alkaline soil.
