1、 Curing method

1. Matrix selection: according to the requirements of soil, select loose and well drained soil, which can be planted in saline alkali resistant land and sandy land in plain and mountainous areas

2. Light management: roses in cold areas like an environment with sufficient light, which is not strict with the light. They can also accept a semi cloudy environment, but they should maintain good ventilation

3. Temperature management: I like a cool and humid environment, can endure the cold, and the minimum temperature can reach - 49 ℃ without death

4. Water management: supplement water according to the dry and wet degree of the soil. Roses in cold areas can tolerate the arid environment and cannot give water frequently. Excessive watering will form waterlogging and rotten roots and plant death

2、 Breeding skills

1. Winter: cold roses can endure cold weather. The lowest temperature can reach - 49 ℃ and will not die, but they should maintain good light and not give too much water

2. Ramet: cut 10cm from the root of rose seedlings in cold areas, bury them in the soil and give them water. They can germinate after half a month