1. Planting? Mainly planted underground, but also a small number of potted plants. In the Yellow River basin and its south area, it can be planted in the open air and overwinter in the open air. In the cold northern region, potted plants should be used indoors for wintering, or ditches should be dug and pots buried for wintering. After defoliation in autumn, it can be planted before germination in spring. It should be planted in a place with high terrain, abundant sunshine and no stagnant water, and the depth is off the ground 15 cm. When potted, humus soil, garden soil and river sand are mixed to cultivate soil, and a proper amount of decomposed manure or cake fertilizer and compound fertilizer are added into the well. After planting, water 1 time, put the seedlings in the shade for a few days and then move them to the sun for culture. ?

2. Light and temperature? Sunlight can promote good growth. Ground planting and potted plants should be placed in sunny places and receive more than 4 hours of direct sunlight every day. Can not be placed in a place with insufficient indoor light for a long time. Enter the room in winter and put it in a sunny place. The suitable growth temperature is 12-28℃, and it can withstand the low temperature of -20℃. It is safe to overwinter in Zhengzhou. ? ?

3. Water and fertilize? Before planting, apply an appropriate amount of organic fertilizer into the tree hole, and then water it after planting. The requirement of water and fertilizer for ground-planted roses is not strict, and generally it can be fertilized three times. First, apply fertilizer before flowering, and put it into furrow before spring buds shade. It is best to add decomposed manure and humus. Second, apply fertilizer after flowering, and apply decomposed cake fertilizer residue after flowering to supplement the consumption of flowering? Nutrition. Third, fertilizing for the winter, and applying human manure after defoliation to ensure the safe wintering of roses. Potted roses can be applied with dilute fertilizer water in cattle for a long time, 10- 15 days 1 time. Roses are drought-tolerant, usually planted without watering, and 20 roses are planted in hot summer or spring drought. -? 30 days 1 time. Potted plants are watered for two days 1 time, and hot summer or spring drought 1 time. ?

4. plastic trimming? Generally, pruning is not needed. Old plants can be pruned to remove dense branches, dead branches and pests. Roses bloom, if they fail, pick them and then bloom, otherwise they will only bloom 1 time. ?

5. Flowering control? Generally speaking, natural flowering is better.