Educational reference only · Not medical advice
Botanical illustration of Cranesbill

Geranium maculatum

Cranesbill

Geraniaceae

Evidence: InsufficientCaffeine Free North AmericaSafety information on file
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At a Glance

Common name
Cranesbill
Scientific name
Geranium maculatum
Family
Geraniaceae
Region
North America
Plant part
Root, Aerial parts
Caffeine
Caffeine Free
Evidence
Insufficient
Safety review
Safety information on file

Safety & Cautions

Safety information on file
Contraindications
Generally very safe in food/tea amounts; caution with anticoagulants and antidiabetic drugs; discontinue before surgery; limit in constipation (astringent).
Drug interactions
May lower blood sugar and may enhance bleeding with anticoagulants; tannins may reduce absorption of minerals and some drugs; consult a clinician.
Pregnancy
Generally regarded as safe in tea amounts.
Children
Mild infusions acceptable in small amounts.
Allergies
Possible in those sensitive to Geraniaceae; rare.
Known adverse effects
Generally very well tolerated; high doses may cause GI upset or, rarely, allergic reactions; may lower blood sugar.

Botanical Description

A low clump-forming perennial with deeply lobed palmate green leaves on long stalks and loose clusters of five-petalled lavender-pink flowers with delicate veins; the root and aerial parts are used.

Also known as: Wild Geranium, Spotted Cranesbill, Alum Root

Historical Background

Cranesbill (wild geranium) has been an astringent herb of Indigenous North American and European traditions for centuries, its root sipped for digestion and gentle throat and wound comfort. Its pink flowers and lobed leaves brew a mild, astringent tea long used in folk practice.

Earliest recorded uses: Indigenous North American and European traditions for centuries; an astringent wound, throat, and digestive herb.

Traditional preparations:

  • Root decoction
  • Aerial-part infusion
  • Astringent digestive tea

Traditional Uses

These uses document historical traditions and do not imply proven effectiveness.

Indigenous North American Traditions

Astringent throat, wound, and digestive herb.

Modern Herbalism

Gentle astringent digestive and throat tea.

Flavor & Aroma

MildSlightly AstringentGreenFloral

Aroma: Mild, slightly astringent, green, floral

Tea Preparation

Preparation methods
Infusion, Decoction (root)
Steeping temperature
200°F (93°C)
Steeping time
8–10 minutes
Recommended vessel
Teapot or saucepan
Blends well with
Nettle, Raspberry Leaf, Yarrow, Honey, Mint
200°F (93°C) 8–10 minutes

Modern Evidence

Evidence level: Insufficient

Cranesbill has a tradition as an astringent digestive, throat, and wound herb; preclinical work shows antioxidant and tannin-rich activity. Clinical evidence is insufficient; it is not a treatment for diarrhea, sore throat, or any disease, though it remains a gentle folk astringent tea.

Evidence levels describe the state of research for the traditional use discussed here, not a recommendation. Historical use does not imply effectiveness.

References & Sources

  1. EMA HMPC · Geranii rhizoma assessment (2015)
  2. PubMed · Geranium maculatum review (2019)

Entry last updated August 4, 2026

Soothing Brews

An educational encyclopedia preserving the history, traditions, and modern evidence behind herbs used in teas and infusions. Inspired by antique botanical manuscripts.

Steeped in tradition, grounded in honesty.

Please Note

This is an educational reference, not a medical resource. Historical use does not imply effectiveness. Natural does not always mean safe. Consult a qualified healthcare professional before using herbs, especially if pregnant, nursing, or taking medications.

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Preferred sources: NIH ODS · NCCIH · MSK Herbs · PubMed · WHO · EMA · German Commission E · Cochrane