Seed treatment: Soak the seeds of Rosa davurica with a new high-fat film, and mix with the screened wet river sand according to the volume ratio of seeds to river sand of 1: 3. Put it at 25℃ to accelerate germination, and sow when 30% ~ 40% seeds germinate.

Plant by plant: Ridge sowing generally has a plant spacing of 20 cm, a hole depth of 5 cm, and 4-5 seeds per hole. After sowing, step on it with a 3 cm soil cover and finally water it. Before germination in spring or after defoliation in autumn, the tillering root seedlings of the first-year mother plant can also be divided into plants with a spacing of 50 cm, a row spacing of 100 cm, a hole opening diameter of 25 cm and a depth of 30 cm. A proper amount of decomposed fertilizer can be applied in the hole, and after being mixed with soil, the seedlings treated with a new high-fat film can be planted in the hole, and the roots can be spread out, covered with soil and compacted, and covered with water slightly higher than the ground.