Rose culture: how to grow cold-resistant rose?

How to grow cold-resistant rose? Please introduce the planting method of cold-resistant rose can refer to the following methods for planting and management: first, the planting environment of cold-resistant rose is hardy and adaptable, and it likes the environment of sun, leeward and air circulation. The suitable temperature for growth is 8-25 ℃, the most suitable relative humidity for growth is 75-80%, and it can withstand the low temperature of-35 ℃ in winter. Cold-resistant rose is suitable for planting green or potted plants, like fertile and loose, good drainage and ventilation, rich in humus loam or light clay. Second, cultivation techniques 1, soil preparation: nursery or green land planting, first rake the turned land flat, apply sufficient base fertilizer, mainly rotten farm manure, can add a small amount of diammonium appropriately. The row spacing of ornamental rose is generally 40 cm and 50 cm. In order to facilitate daily management, it is appropriate to plant two rows in each bed, with a width of 40 cm and about 3400 plants per mu. 2. Pruning and disinfection of seedlings: rose should be planted with digging. Before planting, the seedlings should be trimmed once to cut off diseased branches, dry branches, weak branches, damaged roots and overgrown roots. Soak the roots of the pruned rose with ABT3 rooting powder for 0.5-2 hours, then spray 1-2 times with chlorothalonil or carbendazim wettable powder. 3. Planting: when planting, put the plant into the hole, gently lift, walk the soil, irrigate, make the soil fully wet, and finally fill the soil in the hole. Daily management 1. Irrigation: the root soil of rose should be kept moist, the frequency and time of watering should be mastered according to climatic conditions, and the principle of no dry and no watering should be adhered to. The best time to water is in the morning or near dusk in the afternoon. 2. Fertilization: under the condition of proper fertilization, the rose blossoms beautifully and greatly, and it can also improve the plant's ability to resist diseases and insect pests and cold tolerance. Before sprouting, inorganic fertilizer should be applied once to promote early growth of early spring rose. In cold areas, foliar spray with 1.5-3ppm potassium dihydrogen phosphate can enrich rose branches and improve cold tolerance one and a half months before autumn frost. Topdressing fertilizer once a month in the growing season, so as to apply more thin fertilizer and uniform fertility. 0.15-0.1 kg compound fertilizer is applied per square meter. 3. Pruning: the growing period of rose is from sprouting in spring to dormancy in early winter. pruning should be carried out properly before and after each flowering period. for newly planted young plants, when small buds are formed for the first time in spring, buds should be picked in time to promote them to accumulate and distribute branches. In the future, cut off the residual flowers after each flower fade. In the pruning period, in order to prevent the plant from sprouting and sprouting in the inappropriate position, the buds in other parts of the branch should be erased in time. For the strong rose, in the process of each pruning, in addition to cutting off the dead, diseased and injured branches, some weak, messy and overcrowded side branches should also be cut off according to the shape of the plant, so that the whole plant forms an inverted umbrella shape. Winter shears are mainly strong shears, which are all cut off at 3-6 cm from the base, leaving only about 10 bud holes at the base of the main branch. Click to get more rose planting techniques click to get more flower planting techniques