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2. Cutting propagation usually takes place from March to May. The matrix can be cleaned with fine sand, but loam can also be used. The general requirement for a cutting matrix is ​​good ventilation and drainage, with a substrate thickness of about 10 cm. In early spring, adventitious shoots of tuberous root rhizomes are desirable for cuttings. When cutting, insert holes with bamboo sticks, then insert the cuttings, the depth is about 1/3 of its length. After plugging, it will be irrigated. After that, it will keep the proper humidity of the bed soil. To avoid excessive moisture, it will cause rot and affect the hair root.
1. After rooting and breeding in the early autumn, when the branches and leaves withered, the stems and leaves were cut from more than 10 cm at the base of the stem, and then the roots were excavated and dried for 1 to 2 days. The soil was buried in the sand and set at 5 to 7°C. The indoor storage. Before sprouting in the spring, the stored roots are taken out and cut in the rhizomes of the roots. The roots of each segment must have buds to ensure successful ramets. The roots can be placed in shallow sand, exposed rhizomes, germinated in the greenhouse (18 °C to 20 °C during the day, and 15 °C to 16 °C at night). When the new sprouts can be seen clearly, they can be divided, and each plant can stay. 1 to 2 new shoots, shed ash on the cut-outs for preservation, and then planted.