Planting and cultivation 1. Planting is mainly ground planting, with a small amount of potted plants. In the Yellow River Basin and areas south of it, it can be planted on the ground and overwinter in the open field. In cold northern areas, they should be potted and overwintered indoors, or trenches should be dug and buried in pots to overwinter. It can be planted after the leaves fall in autumn and before budding in spring. It should be planted in a higher, sunny place without water accumulation. The appropriate depth should be 15 centimeters from the root to the ground. When potting, use a culture soil mixed with leaf mold soil, garden soil, and river sand, and add an appropriate amount of decomposed manure, cake fertilizer, and compound fertilizer. After planting, water the seedlings once thoroughly, place them in a shaded place to slow down the seedlings for a few days, and then move them to the sun for cultivation. 2. Light and Temperature Sufficient sunlight promotes good growth. Whether ground plants or potted plants, they should be placed in a sunny place and receive more than 4 hours of direct sunlight every day. It cannot be placed indoors in a place with insufficient light for a long time. Enter the house in winter and place it in a sunny place. The suitable growth temperature is 12-28℃, and it can withstand low temperatures of -20℃. It is safe to overwinter in the open field in Zhengzhou area. 3. Watering and Fertilizing: Apply an appropriate amount of organic fertilizer into the tree cavity before planting, and water thoroughly after planting. Ground-grown roses do not have strict requirements for water and fertilizer. Generally, three times of fertilizer is sufficient. The first is pre-flowering fertilizer, which should be applied in the ditch before the spring buds emerge. It is better to use decomposed manure and leaf mold soil. The second is post-flowering fertilizer. Apply decomposed cake fertilizer residue after the flowers fade to supplement the nutrients consumed by flowering. The third is to fertilize in winter and apply manure after the leaves fall to ensure that the roses survive the winter safely. Potted roses can be fertilized with thin fertilizer and water for a long time, once every 10-15 days after harvest. Roses are drought-tolerant. Generally, those grown on the ground do not need to be watered. During hot summer or spring drought, they need to be watered once every 20-30 days. Water potted plants once every 2 days, and once a day during hot summer or spring drought. 4. Plastic pruning generally does not require pruning. Old plants can be pruned to remove dense branches, dry branches, and diseased and insect-infested branches. When roses bloom, they can be picked as they bloom or fall. They will bloom again after picking, otherwise they will only bloom once. 5. Flowering period control: Generally, the natural flowering period is the best. Cultivation and cultivation: Rose plant height is 1 to 2 meters, with upright stems, densely covered with sharp thorns, thick culms, clustered branches, and the epidermis is green when young and turns gray or white-gray later. The leaves are alternate, odd-numbered pinnate compound leaves, with spines at the base of the petiole and often opposite, oval or elliptical-obovate, pointed apex, rounded or broadly wedge-shaped base, serrated edges, dark green and shiny leaf surface, slightly white-pink backside , reticular veins are obvious and pubescent. The stipules are attached to the common stalk. The flowers bloom in summer, solitary or in clusters. The flowers are mostly purple-red and white, but also yellow, pink and other colors. The flowers have stems, and the stems have villi, glandular hairs and small soft spines. Flowers can be divided into single petals and double petals. Roses are extremely fragrant and are known as the national fragrance. The poet Yang Wanli of the Song Dynasty once said, "There is no other national fragrance that cannot be harvested." The modern poet Qiu Jin said that it "occupies the first fragrance of spring." The poet Tang Yanqian of the Tang Dynasty had the metaphor of "the musk sticks are soaring to the clear sky." etc., the roses The fragrance is praised beyond measure. The fruit is enclosed in a receptacle, flat and spherical, green at first and orange-red when ripe. Roses are easy to propagate and cultivate. Propagation is mostly carried out by sowing, dividing plants and cuttings. Sowing should be done in autumn, and the seeds should be planted in sand. Sand storage treatment method: Mix the sand with a small amount of soil, wet it with water, and hold it in your hands to form a ball, or to disperse it into granules. Then wash the seeds and mix them into the sand. In a sunny or semi-shady area, dig a trench 60 cm wide and 80 cm deep, running east-west, and bury the sand mixed with seeds into it, leaving air holes. Dig it out in early spring of the following year. It is best to plant if there are cracks in the kernels. Division propagation can be carried out in spring and autumn, but autumn is better. Separate some of the roots of 1-2 year old seedlings from the old plants. The wounds can be disinfected and treated better, making them easier to survive. Cuttings are mostly carried out from July to August. Select strong and substantial biennial branches and cut 15-20 cm long nodes for cuttings. Each cutting must have at least three leaf buds, with the lower part cut into a horseshoe shape and the upper part parallel. Can be planted in pots or borders. After planting, you need to shade and protect from the sun, and sprinkle water frequently to maintain a certain humidity and temperature. It will take about a month to take root and become a new plant, and it can be transplanted after a year. Roses love light and sunshine, and are tolerant of severe cold and drought. They do not require special protection and antifreeze in northern winter. As long as there is no severe drought, it can grow without watering (referring to ground planting). The soil requirements are not strict. Generally, fertile soil will allow it to grow vigorously, with luxuriant branches and leaves, and good flowering. Fertilizer should be applied frequently in summer, once every 15-20 days. Water should be watered in time after fertilization to prevent seedlings from burning. Prune in autumn to prevent excessive growth and affect flowering and plant shape. Roses are prone to aphids, so be careful to control them.