Longjack, Tongkat Ali (Eurycoma longifolia)

Longjack, Tongkat Ali (Eurycoma longifolia)

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Longjack aka Tongjat Ali or Malaysian Ginseng is an ULTRA RARE herb native to Southeast Asia, where it grows in the wild and is cultivated for it's potent performance enhancing medicinal root. 

Longjack is a slender evergreen shrub that makes up the under story of lowland forests in Indonesia and the islands of Borneo and Sumatra, where high humidity and acidic soil helps the plant flourish in low light and shade. Eurycoma longifolia is a small slender shrub but can rise to a towering 33 feet tall if allowed to, with stems and leaves spiraling away from the tree’s branchlike trunk.

Purportedly, all parts of the plant may be used a a supplement, but the bark and roots are harvested most frequently. The plant has a bitter herbal flavor, which is an acquired taste for people who use it regularly. 

Plant Type
Perennial Herb / Evergreen Shrub

Harvest Season
Year-round

Mature Size
Up to 33 ft tall in the wild but can easily be grown in a container

Soil & Moisture
Rich, moist, well-drained soil with high humidity

Light Requirements
Part Shade, Shade

Young plants need shade to develop a strong root system, but will do well with more sun exposure overtime. 

Self-Fertile
No

Longjack is not a self-pollinating plant, which isn't an issue at all if you're just growing the plant to harvest its root for medicinal benefit. However, if you're trying to grow Longjack to seed, you'll want to grow multiple plants for the best luck at pollination.

Growth Rate
Fast

Zone Hardiness
Outdoors 9-11 with frost protection; Patio/Greenhouse 4+

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Dig Deeper

The lengthy, twisted roots of Longjack can purportedly be used as an herbal supplement to boost stamina or athletic performance, increase muscle mass, and promote testosterone in the body.

Longjack contains compounds called quassinoids, including eurycomaoside, eurycolactone, and eurycomanone, which may help your body use energy more efficiently, reduce fatigue, and improve endurance. It also contains flavonoids, alkaloids, and antioxidant compounds that can generally benefit your health.