Cultivation and reproduction of roses

Roses are very beautiful and are loved by many flower lovers. Many rose varieties are hardy and can grow in colder climates. Roses grow quickly and require regular pruning to maintain their shape and health. Let’s learn together how to grow and reproduce roses.

1. The reproduction of roses

1. Seed propagation

Used to breed new varieties. The seeds collected in autumn should be stored in moist sandy soil and placed in an environment of 4°C. The seeds can be sown after 40 to 60 days of germination. When the seedlings have 3 to 5 leaflets, they can be transplanted.

2. Grafting

Rose is usually used as rootstock. The best time for grafting is from June to September, and the grafting point should be as close to the ground as possible. Make a "T"-shaped incision on the rootstock, select the buds on the healthy rose branches as the scion, insert it into the incision and tie it tightly with plastic strips. It will heal in about two weeks. This method has a higher survival rate.

3. Cutting method

It is suitable to be carried out in early spring or late autumn, and mature branches with 2 to 3 buds are selected for cuttings. Softwood cuttings need to be shaded and the soil kept moist. It will take about 30 days for the cuttings to take root, and using rooting powder can increase the survival rate.

2. How to cultivate roses

1. Soil selection

Choose a location with high terrain, plenty of sunlight and good air circulation for open-air cultivation, and the soil should be slightly acidic. When tilling, the land is deep-turned and organic fertilizer is applied as base fertilizer.

2. Lighting requirements

Roses need plenty of sunlight to grow and bloom.

3. Moisture management

Adjust watering according to the season. In the north, water enough before winter to keep the soil moist; water enough after the spring thaw to promote the growth of new shoots. Watering should be increased during the growth and flowering periods, but watering should be avoided under the scorching sun in summer.

4. Reasonable fertilization

Roses like fertilizer, especially plants that bloom continuously need sufficient nutrition. Potted roses should be fertilized regularly, with light fertilizer and water applied every 10 days during the growing season. The base fertilizer is mainly organic fertilizer, such as decomposed cow dung, chicken manure, bean cake and oil residue. It is not advisable to apply fertilizer during the winter dormancy period.

5. Pruning and shaping

Except for winter and spring pruning, pruning should be carried out promptly throughout the growing season. After the flowers fade, cut off the remaining flowers and upper branches in time to promote the growth of new branches and flowering again. For branches that grow too vigorously, cut them short to save nutrients. Pruning is also required when the plants are too dense in summer.

6. Pest and disease control

Roses are susceptible to diseases and pests such as black spot, powdery mildew, leaf blight, beetles and caterpillars, so prevention should be the priority. Spray fungicides regularly in high temperature, high humidity and rainy seasons, and spray appropriately during the winter dormancy period depending on the situation.

In short, roses can be propagated through a variety of methods such as cuttings, grafting, and sowing. The methods are simple and have a high survival rate.