Roses are mostly world-famous ornamental plants, and they like to grow in the bushes beside the road, fields or hills. They are widely distributed in the cold temperate to subtropical regions of Asia, Europe, North Africa and North America, and have extremely high ornamental value. The cultivation history in China is very long, which is very suitable for bonsai cultivation. Let's take a look at how to raise potted wild roses!

How does Rosa davurica breed?

The seeds of Rosa davurica can be used to raise seedlings, but cuttings are often used to raise seedlings in production, which is easy to survive. Rare varieties are not easy to cut, and can be propagated by layering or grafting. Asexual seedlings can bloom in the same year. For the seedlings used as potted flowers, the older branches of fine varieties should be selected, and the seedlings should be raised by layering method, and the main buds should be trimmed and artificially dwarfed. For seedlings used as cut flowers, we should choose varieties that can form mother branches and have large and bright flowers. Roses can also be propagated by tissue culture, hydroponics, grafting and ramets.

How to transplant in Rosa davurica?

1. Potted soil configuration: attention should be paid to drainage, ventilation and the collocation of various nutrients in the preparation of potted wild rose nutrient soil, and the ratio is 5 parts of garden soil, 3 parts of humus soil and 2 parts of chaff ash. It is suitable for turning pots, pruning roots and changing soil before and after wintering every year. The diameter of pots should be increased year by year, and clay pots are the best.

2. Transplanting time: potted roses can be potted in spring, summer and autumn, regardless of the season, as long as the root system of seedlings is suitable for development or there are clods. Potting of ground-planted rose trees should be carried out in the dormant period after defoliation in winter or before germination in early spring, otherwise it will affect the normal growth and development, and the tree will be weak and it will take a long time to rejuvenate. Rose seedlings can be put in pots at any time, as long as they are cultivated to survive, in case they grow weak in vain.

3. Potting method: The small rose seedlings pick up the seedlings and gently shake them to fully stretch the roots. The big seedlings don't need to do this. Generally, one pot is enough, and two or three pots can be used when there are few pots (there may be insufficient space in the later branches). The potted rose stems are thick leaves, big green flowers, many stamens and bright colors.

Cultivation and management of Rosa davurica

1. Watering: The watering of wild rose varies with seasons. Keep the soil moist during winter dormancy, as long as it is not thoroughly dried. In early spring, the branches grow forward, the branches and leaves grow, the amount of water is appropriately increased, and 1 time water is poured in the morning and evening. In the peak season and flowering period, we should increase the amount of watering. In summer, the temperature is high, water evaporation increases, and plants are in a weak and semi-dormant state. Drying and dehydration are most prohibited. Water once every morning and evening to avoid exposure to the sun. When watering at high temperature, a small amount of water will seep out from the bottom of the basin every time, indicating that it has been watered thoroughly. Don't splash water on leaves when watering, in case you get sick.

2. Fertilization: Rosa multiflora likes fertilizer, and the base fertilizer is mainly slow-acting organic fertilizer, such as decomposed cow dung, chicken manure, bean cake and oil residue. Adding liquid fertilizer and water once every half month can always keep the leaves thick, dark green and shiny. Concentrated liquid fertilizer can be applied once before germination in early spring, and no fertilizer can be applied at flowering stage. After flowering in June, liquid fertilizer can be applied again. In September, when axillary buds are about to germinate for the fourth or fifth time, medium liquid fertilizer can be applied once, and decomposed organic fertilizer can be applied once when hibernating in June 5438+February.

3. Pruning: A comprehensive pruning must be carried out after the first flower of each season is opened. Generally speaking, it is advisable to cut off the open residual flowers and thin, crossed and overlapping branches in time, leaving thick and young branches only 3 ~ 6 cm away from the base, leaving side buds and cutting them into natural and gratifying shapes to make the plants beautiful and prolong the flowering period. In addition, potted wild roses should choose short, flowery and fragrant varieties.

4. Disease prevention: Rosa multiflora is prone to many diseases, mostly caused by fungi, such as powdery mildew, black spot and rust. Pay attention to pruning branches and leaves in normal maintenance, which is conducive to ventilation. Before the occurrence of pests and diseases, chemical solutions can be sprayed for prevention, sterilization and disinfection. If pests and diseases have occurred, corresponding measures should be taken to deal with them so as not to affect the growth and flowering of wild roses.