Rosa roxburghii, commonly known as Rosa roxburghii, is a common garden flower in the north and is deeply loved by the masses. Rosa roxburghii is a deciduous shrub and likes sunshine and dry environment. Cold-resistant, barren soil-resistant, waterlogging-resistant, and adapted to the harsh urban environment. There are many thorn pears with a long flowering period, which can last from the middle and late April to the end of May. Garden planting can be planted in the sunny place in front of the window or in the middle of the courtyard lawn. The plant is wide and round, and the flowering period is full of golden flowers, which is very spectacular. Because of its sharp thorns, it is also an excellent flower for fences and fences, which not only beautifies the courtyard, but also makes it difficult for chickens and dogs to enter.

In order to make Rosa davurica fruit grow luxuriantly and keep the tree beautiful, in addition to ensuring watering in the early stage of drying, no fertilization is needed, but pruning should be strengthened. Because it likes light very much and grows vigorously, there are many dry branches in the cavity of the plant cluster. People should prune their leaves after they fall in winter. The main purpose is to remove the old branches in the inner room and promote the generation of new branches, so that the old branches are removed year after year, the new branches are preserved, and the whole plant is ventilated and lighted, and it is numerous and not chaotic. Keep the ball crown. Every 3 ~ 5 years, ring fertilization can be carried out before germination in winter and spring, and general compost can supplement soil nutrients to avoid premature aging of trees.

Rosa roxburghii has strong tillering ability. In early spring, new sprouting zones are excavated around the plants for ramet propagation. Or cut off all the overground branches of old plants for many years, then dig out the whole plant, divide the old roots into several parts and replant them, so that new plants with a height of about 1 m can grow in the same year and bloom in time.