Cultivation methods and precautions of red roses

1. Maintenance methods

1. Soil: Red roses prefer relatively fertile soil. When planting, you can choose more fertile sandy soil. This type of soil has good drainage performance and strong drainage. Do not use clay as it has poor air permeability and will affect the development of the plant's roots, resulting in reduced flowering effectiveness.

2. Light: Red roses need a lot of light to grow, and they must get at least four hours of light a day. If it is not exposed to sunlight for a long time, the leaves will turn yellow.

3. Temperature: Red roses need a relatively mild growing environment. The best temperature for red roses is between 12 and 28 degrees. Because the weather is cold in winter, roses need to be moved indoors for cultivation.

4. Water: Red roses are not tolerant to waterlogging, but water is also essential. Be sure to water when the surface is dry, but also be careful not to allow water to accumulate, as this can cause the roots to rot.

2. Breeding techniques

1. Pruning: Usually, excessive pruning is not required. During the dormant period, some pruning should be done on those withered branches, diseased branches and insect-infested branches. In winter, all branches and leaves ten centimeters from the ground should be cut off to ensure a smooth winter.

2. Transplantation: Red roses should be transplanted after all the leaves have fallen. It's fine to leave the roots exposed or with some soil on. Fertilize once half a month after transplanting. In summer, pay attention to irrigation and do not let water be lost. Pruning should be done in autumn to promote metabolism.

3. Problem Diagnosis

1. Black spot disease: spray carbendazim, daktarin, methyl thiophanate and other drugs for treatment.

2. Leaf spot disease: Clean up the diseased leaves in time. In the early stage of the disease, you can spray it with 1% Bordeaux liquid once every half a month. It can also be treated with 800 times spray of 50% Zineb solution.

IV. Other issues

1. Whether to grow indoors: Since red roses like light and need plenty of sunlight, it is recommended to grow them in a place with sufficient light. It needs more ventilation and is recommended to be grown on an outdoor balcony. In winter, be sure to move it indoors to prevent it from freezing.

2. Flowering time: The flowering period of red roses is around April and May, and the natural flowering period is from May to November. It can bloom continuously. Be sure to pay attention to the light when it blooms, as it will not bloom without enough light. During the flowering period, it is also necessary to provide it with sufficient sunlight and water.