Coix lacryma-jobi Seeds | Chinese Jobs Tears Lacroyma-jobi Ma-yuen
LATIN NAME: Coix lacryma-jobi
COMMON NAME: Chinese Jobs Tears, Ma Yuen, Yi Yi Ren
Plant Profile
Chinese Jobs Tears (Coix lacryma-jobi) grows as an upright, vigorous, annual in the grass family, native to warm regions of east Asia, while it has been cultivated as a grain and as an ornamental for a very long time. The Chinese jobs tears is one of the most distinctive of the grain grasses, and its hard, shiny, bead-like seeds have made it both a food and an ornamental across the gardens and the fields of the East. During flowering it gives bees and other insects a dependable food source. In combination, these characteristics make a persuasive case for growing it.
Science & Biotechnology
Job’s tears (yi yi ren) sits squarely on the food–medicine boundary: a gluten-free grain eaten across Asia, and a listed drug of the Chinese Pharmacopoeia. Its oil yielded the coix seed emulsion known as Kanglaite, which is approved in China as an adjunctive injection in cancer therapy — one of the very few botanical injections to reach that regulatory level — with trials reporting improved quality of life and possibly better response when combined with chemotherapy. The kernel’s coixenolide and polysaccharides are studied for anti-inflammatory and immunomodulatory effects. As a food grain it is entirely benign.
Seed science, comparative botany and horticultural selection all touch on Coix lacryma-jobi, a representative of the grass family with clear practical value. The Chinese jobs tears has a real and distinguished place in research. Gardeners benefit directly from its long cultivation: what the plant will do in a garden is well understood.
Uses & Benefits
Beyond its ornamental appeal, Chinese Jobs Tears has the practical versatility that makes a plant worth growing from seed year after year. Ecologically, the Chinese jobs tears is a vigorous grass of wet fields and garden edges. Its sturdy, leafy growth gives a fine cover and a shelter to small creatures, and its hard, bead-like seeds feed birds and small animals through autumn, while it grows well in wet ground and rice-paddy margins. To raise the Chinese jobs tears, sow seeds in pots of moist, rich soil in a warm, sunny place, keep them gently watered, and grow little grasses on in the warmth. Routine care after establishment is refreshingly light.
Job’s tears, Yi Yi Ren, is both a gluten-free grain food and a major Chinese herb for water balance and skin health; coix seed oil derivatives have even reached clinical use as adjunct cancer-support injections in China.
Growing from Seed
Sow fresh seed of Chinese Jobs Tears under ordinary good conditions. Sow on the surface of a gritty, well-drained mix, cover lightly with fine compost, and maintain gentle, even moisture in a sunny position. A cool, moist period before sowing helps the seeds wake evenly — a few weeks in damp medium in the refrigerator is the usual approach. Once the seedlings have made true leaves, pot them on individually and plant out when they are sturdy and conditions are right.
Our Take
Once established, Chinese Jobs Tears, Ma Yuen, Yi Yi Ren largely looks after itself. Its long record of traditional use, described above, gives the plant a story beyond ornament. A few weeks of cold, moist stratification before sowing mirrors its natural cycle.
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