Introduction \x0d\ Sabina of Cupressaceae, gymnosperms. It is more suitable for cutting in spring, and the cutting temperature should be between 24 and 30℃. Cutting should cut the top of the mother plant with a length of about 15 cm on the sunny side, and soak the cutting mouth with 600ppm indoleacetic acid solution 1 min. The cutting substrate can be vermiculite, pure river sand, peat soil or soil in which peat soil and river sand are mixed evenly. The main producing areas are Zhejiang, Anhui, Jiangsu, Shandong, Henan, Hebei and other places. \x0d\ Habit \x0d\ small evergreen tree, 4-8m high. Like plenty of sunshine, suitable for planting in well-drained sand. The bark is dark gray with longitudinal cracks on the surface of the trunk. The crown is cylindrical. Most of the leaves are scales (the main difference from juniper), and a few are spiny leaves, which are closely arranged in a cross along the branches. \x0d\ propagation \x0d\ cypress is a rare garden tree with a cylindrical crown like a dragon and a fixed tower, which is suitable for planting around Gaoxia Square or for potted arrangement. It has adsorption function and dust removal effect on a variety of harmful gases. Although cypress can bear seeds, it is not easy to germinate. The propagation methods are mostly cutting and grafting. \x0d\ 1, with high survival rate and fast seedling growth. The disadvantage is that the number of breeding is limited and the procedures and management are troublesome. Because the mother tree is tall, it is more inconvenient to operate, but this method can still carry out a small amount of reproduction. Sabina vulgaris, Sabina vulgaris, Platycladus orientalis and Platycladus orientalis can be used as rootstocks. It can be implemented in March-April, and can be cut off from the female parent for transplantation when it is completely healed in August-September. \x0d\2。 Grafting in early spring: In early spring February, 2-year-old Platycladus orientalis was used as rootstock, and healthy and disease-free Sabina vulgaris 1-2-year-old branches were selected as scions with a length of 5- 10 cm. Take off the lower needle of 2-3 cm, and make a straight cut with a length of 2-3 cm at the same time, and make a diagonal cut on the reverse side. Rootstock can be cut from the grafting point, and then directly from one side of the cross section, 2-3 cm long, pay attention to the xylem. Then insert the cut scion into the rootstock, with the cambered layers on one side aligned with each other, and then tie the joint firmly with plastic film. In order to make the scion die without losing water before survival, a small plastic bag can be put on the scion. About 2 months later, the terminal bud of the wind scion germinated, which proved that the wound had healed well, and the bagging could be removed for normal management. In addition, the skin can be torn and spliced during the growing period. The grafting survival rate of this method is also very high. \x0d\ practice \x0d\ 1. In the courtyard, cypress should be planted in the lee of the sun, with high terrain and deep soil layer to avoid low-lying and waterlogging. In early spring, the soil should be planted in time after thawing, and the seedlings must be transplanted with complete clods and applied with proper amount of decomposed base fertilizer. After planting, fully irrigate, before the seedlings turn green, pay attention to drying in the hot sun in spring and spray water on the crown twice a day. Pay attention to drainage and flood prevention in rainy season, and water winter once in winter. When the groundwater level is high and the soil is wet, the water consumption in winter can be reduced or exempted. In the first year or two, it is advisable to try to prevent wind in winter. \x0d\2。 Potting should choose loose and fertile sandy culture soil rich in humus, which can be prepared from pine needle soil, peat soil, mountain mud and surface sand. Master the moderate dryness and wetness of potted soil, avoid drought and waterlogging, keep sufficient sunshine and fresh air in potted plants, and topdressing liquid fertilizer for 3 ~ 4 times during the growth period. In winter in the north, it is necessary to enter the cold room for management and protection. Pay attention to the prohibition of fertilizer and water control, and the room temperature should not exceed 5℃. In the dry season of midsummer, the red spider often invades the buds, which can be treated by spraying the liquid medicine. Spraying water on the canopy at ordinary times also has preventive effect. \x0d\ plastic trimming \x0d\( 1) cylindrical: the trunk of cypress is obvious, and there are many main branches. If the main branches come from the same part of the trunk, one must be cut off, leaving only one main branch in each round. The main branches are generally 20 ~ 30cm apart and randomly distributed. Each main branch should be cut into short sections, and the cut should fall on the small side branches that grow upward to ensure the beautiful tree shape. The twigs in the main branches should be thinned early to facilitate light transmission. During the growth period, when the new branches grow to 10 ~ 15 cm, they should be cut 2 ~ 8 times a year to inhibit the excessive growth of the branches. The pruning of main branches should be gradually shortened from bottom to top to promote the formation of columns. Pay attention to control the competitive branches at the top of the trunk and avoid branching trees. Pruning of big branches is mainly carried out in dormant period to avoid juice outflow. \x0d\(2) Jumping type: generally, a small number of main branches and side branches are evenly reserved to make them grow significantly, and the rest of the main branches and side branches are all cut short. During the growth period, the new shoots of the whole tree are pruned for 6 ~ 8 times, and the length of the main branches and lateral branches protruding from the crown is kept at 1 1.5 times the crown diameter, forming the posture that the dragon leaps out of the crown. \x0d\(3) Hand-shaping: Apart from naturally growing into a tower shape, cypress trees are often shaped according to the design intent, but it should be noted that the shape of the tree should be in harmony with the surrounding landscape, and the lines should not be too complicated, and the outline should be clear and concise. The specific method of shaping depends on the skill of trimmer, and it is often trimmed by making outline patterns in advance with brown rope or lead wire. Climb up and knead the animal images such as Jackie Chan, horse, lion, deer and elephant.