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How long is the growth cycle of Gastrodia elata (tianma)?
Under artificial cultivation conditions, Gastrodia elata takes about 3 years to complete one growth cycle. Its growth process is basically as follows: from November to February of the following year, the arrow tubers are planted; in late June the Gastrodia elata seeds mature, and they should be sown within one week. Please note that in production, Gastrodia elata seeds and tuber seed stock are two different concepts. The former refers to the extremely tiny seeds in the capsule formed after pollination, produced on the spike inflorescence that grows on the aboveground stem of the arrow tuber; the latter refers to small tubers or tuberlets, that is, small Gastrodia elata. After sowing, Gastrodia elata seeds germinate