Zi Yuan is a perennial herb of Zi Yuan in Compositae. Zi Yuan is 1- 1.5m high, with erect stems, tufted basal leaves, long oval shape, tapering base into wing-shaped stalks, serrated edges, sparsely strigose on both sides and long petioles. Cauline leaves alternate, ovate or oblong. The flower heads are arranged in an umbrella shape, with long stems and dense short hairs. The involucre is hemispherical, with 3 layers of involucre and purplish red edge. The tongue flower is blue-purple, and the tubular flower is yellow.
Aster grows on shady slopes, grasslands and rivers. I like warm and humid climate, and I am resistant to waterlogging, drought and cold. When the temperature is -20℃ in winter, its roots can safely overwinter. The requirements for soil are not strict, and it can be planted except saline-alkali land and sandy land.
Propagation cultivation
Aster is a common domestic small variety, which is rare in the wild. Due to unstable production and frequent market fluctuations, especially in recent years, production has been shrinking continuously, human participation has increased, market changes have become more frequent and larger, and super-historical record markets have emerged continuously. The annual demand of aster is about 1000 tons.
Aster is a perennial herb, which likes warm and humid climate and has the characteristics of being afraid of drought and cold. 10 began to produce new crops, which can be planted in spring and autumn, mainly in autumn. Aster is propagated by seedlings, and its transmission speed is slow. If you want to be lazy, planting aster will continue to emerge in the second year after harvest. However, due to the degradation of provenance, it is impossible to continue planting, and the output in the second year is greatly reduced, only about 200 kilograms can be harvested, while the new seedlings in Xindi can produce 300 kilograms of dry goods in the first year.