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# Java Tea
- URL: https://www.primalfruits.net.au/java-tea/
- Published: 2026-09-15T00:04:35.000Z
- Updated: 2026-09-15T00:07:47.000Z
- Author: Cyrus Roussilhes

Stunning flowers, Aussie native, medicinal, edible and makes tea. Plus one of the easiest plants to propagate. What more could you ask for! 

Orthosiphon aristatus or commonly known as Cat's Whiskers, Java Tea, Kumis Kucing in Malaysia. Java Tea is a striking herb-looking small shrub from the mint family.

Famous for its showy white to pale purple/pink flowers with long stamens resembling feline whiskers. 

It is a fantastic addition to any home garden, functioning as a beautiful ornamental bloom, an active pollinator magnet, and a traditional medicinal herb.

You could call it perennial as it survives for upto 5 years but it's easy to grow more from stem cuttings.

Origin: Native to tropical regions across Southeast Asia (including Indonesia and Malaysia), Southern China, the Indian subcontinent, and Tropical Queensland in Australia.

How to Grow in Perth: Ideal prune height is around 1 m. The more you prune the better it looks. Naturally stays under 2m.

pH growing conditions: 6.0 to 7.0\. so not too fussy.

Can handle near full sun but prefers dappled shade during harsh Perth summer afternoons.

Minimum pot year 5: 30L pot Harvest often from 2 to 3 months. Start with tip pruning. Cat's Whiskers thrives during Perth's warm spring and summer months. However, Perth's sandy coastal soils dry out fast and lack nutrients, so mix plenty of organic compost and aged manure into the planting hole. 

Treat it like a tropical. Apply a thick layer of mulch to conserve soil moisture. The plant is frost-sensitive, so plant it in a protected spot away from cold winter winds or keep it in a large container that can be moved under cover during winter. Water deeply 2 to 3 times a week in high summer.

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Flowers are mostly white. Can be pink too.

In Asian Culture it's known locally in Indonesia and Malaysia as Kumis Kucing (Cat's Whiskers), it has been a staple in traditional Southeast Asian medicine for centuries, particularly in Java where dried leaves were processed into Java Tea for royal courts and common folk alike.

Indian Culture: Integrated into regional folk medicine practices alongside other Lamiaceae (minty herbs) like Tulsi, used traditionally as a cooling tonic to clear heat from the urinary tract.

In Australia native varieties occur naturally in rainforest edges of Tropical Queensland. It is widely grown across Australian warm-temperate and subtropical gardens as a cottage garden plant and native insect attractor.

Medicinal Studies and Uses: Modern pharmacological research supports many of its traditional claims. It contains high levels of rosmarinic acid, flavonoids (like sinensetin), and potassium.

Scientific studies highlight its diuretic properties, which help flush out uric acid and excess fluids without depleting essential minerals. 

Research also indicates anti-inflammatory, antioxidant, and mild antibacterial effects, making it a popular natural compound for managing kidney stones, mild urinary tract infections, and gout.

Orthosiphon aristatus leaves are primarily used fresh or dried to prepare herbal infusions and health remedies.

Taste wise the brewed tea has a mild, clean, and earthy herbal taste similar of green tea or nettle tea, accompanied by a subtle bitter undertone and a faint cooling herbal finish.

Yes, the young leaves are edible and non-toxic. They are primarily dried or used fresh to steep herbal teas rather than eaten whole, as the raw leaves can be tough and slightly bitter.

To make a herbal tea infusion: Steep fresh or dried leaves in hot water for 5 to 10 minutes to make Java tea. Kidney and Bladder Support: Brewed into a natural diuretic tea to help flush the urinary tract, support kidney function, and reduce fluid retention.

Raw in Salads as young, tender top leaves, chopped raw into mixed green salads. Older leaves are tough and fibrous raw, carrying a stronger grassy bitterness. 

Cooked by blanching, boiling, or stir-frying tender shoots softens the texture and tones down the bitter undertones. Cooked leaves can be added to soups, stews, or stir-fries alongside other greens. 

Best Uses would be to select young tips chopped fine as a savory herb, blanched as a side green, or used raw as a leaf wrapping. The mild edible flowers can also be tossed whole into salads as a decorative garnish. 

Other Uses

Joint and Gout Relief: Used traditionally to help clear excess uric acid from the body, helping with gout and joint discomfort. 

Topical Poultice: Crushed fresh leaves can be applied externally to minor skin irritations or swelling.

Garden Pest Deterrent: The aromatic leaves contain natural essential oils that can be crushed and rubbed on skin as a mild insect repellent.

Lifecycle and Propagation: While it can be a short-lived perennial, super easy to make more 

Typically lasting 2 - 4 years before becoming woody and leggy. Because it declines after a few years, regular pruning and propagation are recommended to maintain fresh plants.

Propagation is extremely easy via softwood stem cuttings. 

Take 10-15cm stem cuttings in spring or summer, strip the lower leaves, and place them in water or a moist potting mix. Rooting typically occurs within 10 to 14 days.

As a pollinator attractant for fruit trees it's an absolute magnet for native bees, honeybees, butterflies, and hoverflies. Regular tip-pruning after flowering spikes fade will keep the plant bushier and encourage continuous blooming spikes throughout late summer and autumn.

![](https://storage.ghost.io/c/22/8b/228b05bc-0776-46a4-a639-8098b36c5c3e/content/images/2026/09/1000014131.jpg)

[![](https://storage.ghost.io/c/22/8b/228b05bc-0776-46a4-a639-8098b36c5c3e/content/images/2026/09/1000014118.png)](https://primalfruits.com.au/products/java-tea?ref=primalfruits.net.au)

Buy at Primal Fruits Perth, a starter tubestock plant from late October 2026