How to grow roses

I. Culture environment

1. Soil: choose the soil suitable for rose growth, generally use the soil with loose, good drainage and good ventilation.

2. Watering: you don't need to water the roses too much. If you water the roses frequently, there will be rotten roots, especially in the rainy weather with high humidity. You must control the amount of water.

3, fertilization: it should be given light fertilizer, if you give it thick fertilizer will burn the roots, about 15 days to pour light water and fertilizer, you can use fermented rice water, generally bright leaves do not need to apply fertilizer.

4. Illumination: the rose needs enough light to grow. Give it more than 4 hours of light every day. If you put it in a place with poor ventilation for a long time, the leaves will turn yellow. When the temperature is low, it is best to put it indoors near the window.

II. Methods of reproduction

1. Sowing and propagation: put the collected seeds in a bag filled with sand, heat them up to 20 ℃ a month later, wait for the seeds to germinate, and plant them separately when the seedlings grow 3-5 leaflets.

2. branch propagation, cultivate the root of the rose, let each branch grow a new root system, when changing the basin, the lateral branch of the new root can be cut, it will form a new plant.

III. Common diseases and insect pests

1. Shell worms: once they appear, it is difficult to deal with. Usually, it should be placed in a well-ventilated place, and the excess branches should be cut off properly to strengthen ventilation. The basin soil should not have stagnant water. When there are spots on the branches, they should be scraped off in time, and the whole branch will be cut off when the disease is serious. At the same time, cooperate with chemical spraying.

2. Powdery mildew: after suffering from the disease, the leaves will protrude, there will be powdery powder, and there will be a layer of mildew in the buds and branches when the disease is serious. to spray chemicals regularly, the branches and leaves of the disease should be cut off immediately, which can reduce the chance of transmission of the disease.