Asparagus cochinchinensis seed | Tian Men Dong
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LATIN NAME: Asparagus cochinchinensis COMMON NAME: Tian Men Dong
Botanical Profile
Tian men dong is native to China, Japan, Korea and Southeast Asia, growing as a climbing perennial with fine, needle-like cladodes typical of the wider asparagus genus, scrambling through supporting vegetation by way of small hooked spines along its wiry stems. Below ground, it produces clusters of swollen, tuberous roots, which are the part collected and used in traditional Chinese medicine.
Science & Conservation
Tian men dong tuber has a long history of use in traditional Chinese medicine, classically associated with formulas addressing dry cough and supporting what traditional theory describes as yin fluids, and modern phytochemical research has identified steroidal saponins in the tuber that continue to be studied for their pharmacological properties. This combination of deep classical use and ongoing research interest makes it one of the more actively studied tuberous roots in the traditional Chinese herbal pharmacy.
Landscape & Practical Uses
Tian men dong tuber remains a significant ingredient in traditional Chinese herbal formulas today, and as with any medicinal herb, appropriate use is best discussed with a qualified herbalist or healthcare provider. As a climbing ornamental, its fine, feathery foliage also gives it some appeal for a wildlife or specialty medicinal plant trellis.
Growing From Seed
Fresh seed benefits from a period of cold, moist stratification, after which it should be sown into a loose, well-drained mix. Bright, filtered light suits the young climbing seedling well, and a support should be provided as it grows, since this species will scramble through nearby vegetation or trellising once established.
Our Take
We would grow this one specifically for the traditional Chinese medicine garden rather than for its ornamental value alone; the tuber is the real point of interest here, and patience is needed since it takes real time below ground to develop.
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Explore other seeds in this collection: Asparagus densiflorus (Foxtail Fern, Asparagus Fern), Asparagus myriocladus (Ming Fern), Asparagus densiflorus ‘Sprengeri’ (Sprenger’s Asparagus Fern), Artemisia vulgaris (Common Mugwort).