Ophiopogon japonicus is harvested in the second or fourth year of April after planting. Choose a sunny day, first plough the soil 25 cm with a plow, make Ophiopogon turned out, shake off the dirt, cut the roots and fibrous roots, respectively, into the basket, set the flow of water with your feet scouring Amoy net sediment. Wash the Ophiopogon japonicus, spread to the sun or sun exposure in the drying area, dry the water, then rub it gently with your hand, and then dry it out. Then repeat it several times, until the stubble is removed, then dry it to dryness, and sieve it with a sieve. Impurities are served. If it is rainy and cloudy, use a mild fire at 40-50°C for 15-20 hours. Take it out for a few days, bake it until it is completely dry, and sieve to remove impurities.
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