About Cat’s Whiskers (Orthosiphon aristatus)

Cat’s Whiskers is a striking ornamental herb known for its long, elegant white stamens that resemble whiskers. I grow it in the front yard alongside taro, chillies, and cranberry hibiscus — it looks beautiful and attracts both native bees and honey bees. This makes it a wonderful choice for pollinator-friendly gardens and subtropical food forests.

Medicinal Benefits

Recognised by Commission E, Orthosiphon aristatus is traditionally used for:Flushing the urinary tractSupporting kidney health, especially with renal gravelManaging mild urinary tract inflammationAssisting in clearing bacterial infections of the urinary tractModern studies also highlight its antimicrobial, anti-hypertensive, and anti-inflammatory properties. It is commonly prepared as a herbal tea, sometimes referred to as Java tea or Indian kidney tea.

Edible and Culinary Uses

Cat’s Whiskers offers more than beauty:Flowers are edible and make elegant garnishes for desserts and salads.Fresh young leaves can add a mild herbal flavour to salads, especially paired with citrus dressings.Traditionally, the leaves are dried and brewed as a refreshing herbal tea.

Growing Conditions

SunlightThrives in full sun, but also grows well in part shade, especially in hot Australian summers.SoilPrefers rich, well-drained soil with plenty of organic matter.Tolerates clay-loam if improved with compost.Performs best in slightly acidic to neutral soils.WateringNaturally drought-tolerant once established, but grows more lushly with regular watering.Avoid waterlogging — good drainage is essential.Frost HardinessFrost tender — protect young plants with frost cloth or grow in a sheltered microclimate.In warm coastal and subtropical regions, it grows easily year-round.Growth HabitIn Port Stephens and similar climates, plants typically reach around 1 m in height, sometimes a little less.Responds well to pruning after flowering to maintain shape and encourage fresh growth.

Why Grow Cat’s Whiskers?

Beautiful bee-attracting flowersUseful medicinal herb for urinary and kidney supportEdible flowers and leavesTough, low-maintenance, and adaptablePerfect for subtropical, warm-temperate, and coastal gardens

Other Names

Indian Kidney Tea, Java Tea, Orthosiphon, Kumis Kucing.