Please see the introduction here:

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Protect bamboo and cypress:

Bamboo cypress, alias Luohanchai, armored tree, etc. , an evergreen tree of Dendrocalamus in Podocarpaceae. Its leaves are dark green, evergreen all the year round, beautiful in appearance, and its seedlings and young plants can be used as potted foliage plants for viewing. According to the different sizes of plants, they are arranged in living rooms, study rooms, offices and other places, which are exquisite and elegant.

Bamboo and cypress like warm and humid semi-cloudy environment and are afraid of exposure to the hot sun. Potted bamboos and cypresses can be chosen to be biennial, because their plants are thin and weak, and one pot keeps growing. When planting, refer to the production method of bamboo bonsai, pay attention to the scattered height and the position of the front, back, left and right, so as to make it properly dense, exquisite and elegant. You can also spread a layer of stones or moss on the surface of the pot soil to increase the ornamental value. Depending on the artistic conception, ceramic ornaments such as giant panda and shepherd boy can also be placed on the basin surface to make it interesting.

Pay attention to shading when the light is strong from May to September. You can set up a sunshade net or put the flowerpot in a place where there is no direct sunlight for maintenance to avoid strong direct light burning the roots and causing plant death. During the growing period, the basin soil should be kept moist and free of water, and excessive drought and water accumulation is not conducive to the normal growth of plants. Water is often sprayed on the leaves and around the plants to increase the air humidity, make the leaves dark green and bright, and prevent the leaves from drying up due to air drying. Potted plants don't need to grow too fast, and generally don't need additional fertilization, but in order to ensure that the leaves are dark green, alum fertilizer can be applied two or three times during the growing season. During cultivation, attention should be paid to pruning and shaping, cutting off branches that affect the beauty of the plant, and picking off aged and yellow leaves to control the height of the plant and maintain its beautiful appearance. In winter, put it in a bright place indoors, control watering, and it can be safely wintered at a temperature not lower than 0℃. Change the basin every spring. Pot soil can be a mixture of humus soil or peat soil in 3 parts, garden soil in 2 parts and sandy soil 1 part.