For the lily family asparagus genus, asparagus (Asnaragus cochinchinensic) tuberous roots, nourishing yin and clearing heat, moistening dryness and generating fluids. The main treatment of tuberculosis, bronchitis, diphtheria, whooping cough, dry mouth and throat, fever, thirst, diabetes, stool dryness; external treatment of sores, swelling and poison, snake bites. Born in the shady and wet mountains, forests, grassy slopes or hilly areas in the bushes; distributed in South China, Southwest China, Central China and Henan, Shandong and other provinces. For perennial growth of green, semi-trailing herbs, stem base lignified, multi-branched clumps pendulous, 80-120 cm long, leaf style clumped flat like pine needles, green and shiny, flowers white, flowering period of June to August, the fruit is green, red when ripe, spherical seeds black.

Growth characteristics

Prefer warm and humid, semi-shade, drought and barren, not cold, winter must maintain a temperature of 6 ℃ or more.

Cultivation techniques

1. Reproduction methods

Sowing-based, seed harvesting in December from green to red can be harvested, hole sowing 25 ℃ moisturizing conditions, half a month that is the seedling. Plants reproduction, perennial old forest, to its excess roots and old skills, depending on the size of the plant, divided into a number of plants.

2. Cultivation and management

Require loose, fertile, well-drained soil, spring and autumn, 8-10 days of a rotting organic fertilizer, summer and winter is less. The soil should be kept moist and breathable, avoid direct sunlight in summer, not less than 6 ℃ in winter, can be safely overwintered, few pests and diseases.

Specific practices: pots, soil: the choice of clay pots is good, outside can cover plastic pots or other pots. Because of its like loose, fertile, well-drained sandy loam, potting soil can be used in the leaves or peat soil, garden soil, river sand in the proportion of 2:2:l plus the right amount of fertilizer mixed and made. Depending on the growth of the plant can be changed once a year, the pot can be increased year by year, such as not changing the big pot, only turn the pot, to properly remove some of the small pieces of root. Light, temperature: like warm and humid environment, semi-shade tolerance, not cold. In addition to summer shade, the other three seasons should be given appropriate light, especially in winter, it is appropriate to put in the sunny place, growth temperature 2 0 ℃ to 25 ℃, overwintering temperature greater than 10 ℃ or more. Water, fertilizer: asparagus for spindle-shaped fleshy tuber, afraid of waterlogging, usually watering should not be too much, potting soil dry once to water enough. Summer temperatures are high, should be appropriate more watering, can be sprayed daily with a fine spray bottle to the plant or to the ground around the pot sprinkled with water. Winter should be less watering, depending on the situation can be about half a month watering. Pay attention to timely spray wash branches and leaves dust. In addition to potting to apply sufficient fertilizer, fertilizer should be in line with the "thin fertilizer, a small amount of, hard to apply" principle, the growth period can be once a month of fertilizer, summer can also be poured liquid fertilizer. May to June for the growth of its peak period, should pay attention to the fertilizer, water supply. Reproduction: seeding or dividing. Sowing is generally carried out in early spring or early summer, early spring temperature greater than 1 5 ℃, a month can germinate. Divided plant reproduction can be combined with potting, according to the size of the mother plant into several plants, respectively, on the pot, first placed in the semi-shade maintenance, and later transferred to normal management. When the asparagus is not maintained properly, the stem and leaves are easy to turn yellow, and the leaves are easy to fall off. Should pay attention to the following points: (1) whether the nutrition is in short supply. (2) Whether the fertilization is inappropriate, too much fertilizer at a time or the application of unrotted fertilizer, causing root burning. (3) whether the light is insufficient or too strong. In addition, usually should pay attention to stem and branch renewal, keep the plant beautiful, thinning out dense branches, cross branches, cut out the old, weak, diseased, residual branches at any time.