Herbarium of the Ancients — Detailed EntryFR · EN
Hydrangea arborescens
Hydrangea arborescens
Read before use: the information below describes traditional and informational uses — it does not replace the advice of a healthcare professional. In case of doubt, pregnancy, breastfeeding, ongoing treatment, or use in children, seek advice before use.
Enhanced precautions for this plant: The fresh root contains cyanogenic glycosides and must never be consumed without proper drying or preparation. Use is not recommended for pregnant or breastfeeding women, or for children, due to insufficient data. Overdose may cause dizziness, chest tightness, or digestive disturbances; advice from a qualified healthcare professional is required before any use. Avoid combining with diuretic treatments or medications for kidney conditions without medical supervision.
Decoction — Dried root
Traditional root decoction
The dried root was gently boiled in water, then left to infuse before being filtered. This preparation, reserved for occasional and supervised use, requires the advice of a healthcare professional before any use. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Tincture — Dried root
Root tincture
The dried root was macerated in alcohol for several weeks to extract the active principles, following classic 19th-century herbalism methods. This concentrated form requires prior consultation with a qualified therapist. Dosage must be validated with a healthcare professional or recognized pharmacopoeia before use.
Where to find it
Sourcing the plant
Today, dried root of Hydrangea arborescens can be found at certain herbalists specializing in North American plants; the plant itself is also cultivated as an ornamental shrub in gardens.
Harvest season
When to harvest it
The root is traditionally harvested in autumn, when the sap descends, then carefully dried before any use.
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