Educational reference only · Not medical advice
Botanical illustration of Buchu

Agathosma betulina

Buchu

Rutaceae

Evidence: InsufficientCaffeine Free South AfricaSafety information on file
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At a Glance

Common name
Buchu
Scientific name
Agathosma betulina
Family
Rutaceae
Region
South Africa
Plant part
Leaves
Caffeine
Caffeine Free
Evidence
Insufficient
Safety review
Safety information on file

Safety & Cautions

Safety information on file
Contraindications
Avoid in pregnancy and breastfeeding; avoid in kidney disease and renal inflammation without guidance; do not use the pure essential oil internally; discontinue before surgery.
Drug interactions
May enhance diuretic effects and bleeding with anticoagulants; may affect liver-metabolized drugs; limited data.
Pregnancy
Avoid; insufficient safety data and uterine-stimulant tradition.
Breastfeeding
Avoid; insufficient safety data.
Children
Not recommended without professional guidance.
Allergies
Possible Rutaceae (citrus) cross-reactivity.
Known adverse effects
Possible gastrointestinal irritation; essential oil toxic if ingested; rare liver effects with overuse.

Botanical Description

A small rounded aromatic shrub with rounded toothed glossy green leaves dotted with oil glands and small star-shaped white or pink flowers; the leaves are the part used.

Also known as: Buchu Leaf, Buko, Round Buchu

Historical Background

Buchu is a fragrant shrub of the South African Cape, used for centuries by Indigenous Khoisan and San peoples for urinary and digestive comfort. Its minty-peppery leaves became a sought-after Cape export in the 19th century and remain a gentle urinary herb.

Earliest recorded uses: Indigenous Khoisan and San traditions for centuries; adopted into early Cape medicine and exported since the 19th century.

Traditional preparations:

  • Leaf infusion
  • Short-term urinary tea
  • Cape brandy tincture (off-tea)

Traditional Uses

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

Indigenous African Traditions

Urinary, digestive, and stomach comfort tea.

Modern Herbalism

Gentle urinary and aromatic tea.

Flavor & Aroma

MintyPepperySlightly FruityMedicinal

Aroma: Minty, peppery, slightly fruity, medicinal

Tea Preparation

Preparation methods
Infusion
Steeping temperature
200°F (93°C)
Steeping time
5-10 minutes
Recommended vessel
Teapot
Blends well with
Uva Ursi, Cornsilk, Green Tea, Honey, Lemon
200°F (93°C) 5-10 minutes

Modern Evidence

Evidence level: Insufficient

Buchu has an Indigenous tradition as a urinary and digestive herb. Clinical evidence is insufficient; preclinical work shows antimicrobial and diuretic activity, but it is not a treatment for UTI, infection, or any disease; use short-term only.

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 · Agathosma (buchu) assessment (2014)
  2. PubMed · Agathosma betulina review (2018)

Entry last updated November 5, 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