Hydrangea arborescens
Hydrangea Root
Hydrangeaceae
At a Glance
- Common name
- Hydrangea Root
- Scientific name
- Hydrangea arborescens
- Family
- Hydrangeaceae
- Region
- North America
- Plant part
- Root (dried, peeled)
- Caffeine
- Caffeine Free
- Evidence
- Insufficient
- Safety review
- Safety information on file
Safety & Cautions
Safety information on fileBotanical Description
A deciduous shrub with large opposite oval green leaves and broad clusters of small white flowers; the peeled root is the medicinal part, long used for kidney and urinary concerns.
Also known as: Wild Hydrangea, Seven Barks, Smooth Hydrangea
Historical Background
A Cherokee and early-American remedy for kidney stones ('gravel') and urinary discomfort; later adopted by Eclectic physicians for similar uses.
Earliest recorded uses: Kidney stones ('gravel'), urinary discomfort, and bladder irritation.
Cultural significance: Known as 'seven barks' for its layered peeling root bark; a classic Appalachian kidney remedy.
Indigenous
Cherokee use hydrangea root for kidney and urinary concerns.
19th century
Eclectic physicians adopt it for 'gravel' and bladder stones.
Traditional preparations:
- Root decoction
- Tincture
Traditional Uses
These uses document historical traditions and do not imply proven effectiveness.
Native American Traditions
Root decoction for kidney stones and urinary soothing.
Modern Herbalism
Used for urinary and prostate comfort.
Flavor & Aroma
Aroma: Mild, earthy, rooty
Tea Preparation
Modern Evidence
Used largely on traditional grounds; limited modern study of flavonoids and coumarins. Clinical evidence for kidney stone outcomes is lacking.
Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.
References & Sources
- American Herbal Products Association · Botanical Safety Handbook (2013)
Recipes Using Hydrangea Root
Related Herbs
Entry last updated August 15, 2026