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Photo: JonRichfield, CC BY-SA 3.0 (via Wikimedia Commons)

Oval Buchu

Agathosma crenulata

Also known as Oval-leaf Buchu, Round Buchu, Boegoe, Bookoo

At a glance
Family
Rutaceae (the citrus family)
Type
Evergreen aromatic shrub
Parts used
Leaves
Size
A low, woody shrub reaching about 1 to 2 feet tall, sometimes more
Bloom
Small white to pale pink, five-petaled star-shaped flowers in late winter and spring
Habitat
Rocky, sandy mountain slopes of the fynbos in South Africa's Western Cape, particularly the Cederberg and Cape Fold ranges
Acquisition
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This plant in HerbSense

Key benefits

Traditional digestive tonic
Supports urinary comfort
Aromatic bitter herb
Warming Cape tradition

Traditional uses

Long before it reached European apothecaries, oval buchu was a cornerstone herb of the Khoikhoi people of the Cape, who chewed and steeped its pungent, blackcurrant-scented leaves as a tonic for the stomach and urinary tract. Dutch settlers in the seventeenth century quickly adopted the plant, infusing it in brandy to create boegoe brandy, a household remedy kept in nearly every Cape farmhouse. By the 1800s, buchu had been shipped to London and beyond as one of the first South African botanicals to enter Western herbal trade, prized for its sharp, warming aroma as much as its traditional reputation as a gentle digestive and urinary tonic.

How to grow & use it

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The full apothecary for Oval Buchu

Traditional remedies and step-by-step preparations, a complete growing guide, and how to harvest, dry, and store it, all unlocked with HerbLens Unlimited.

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  • Growing guide
  • Harvest & storage
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Pairs well with
  • Rooibos
  • Buchu's cousin round buchu
  • Ginger
Substitutes
  • Rooibos
  • Uva ursi
Choose it when

You want a fragrant old-world tonic with a bright, currant-like bite and centuries of Cape tradition behind it.

Did you know?

The genus name Agathosma comes from the Greek agathos (good) and osme (smell), and Cape Dutch settlers so prized the plant's scent that they steeped its leaves in brandy to make boegoe brandy, a folk tonic still made in South Africa today.

Safety

Oval buchu's concentrated essential oil contains pulegone, a compound that can be toxic to the liver and kidneys in quantity and is chemically similar to the pennyroyal oil implicated in poisonings, so the essential oil should never be taken internally. The dried leaf tea itself is generally considered mild, but because of its traditional diuretic reputation, it should be avoided during pregnancy and used cautiously by anyone with kidney disease or already taking diuretic medications, as effects may compound. As with any herb taken internally, talk with a qualified healthcare provider before use, especially if pregnant, nursing, or managing a chronic condition.