How to care for Catharanthus roseus in winter and what to do if the leaves turn yellow

1. How to maintain in winter

1. Bring the plant indoors in time: Catharanthus roseus is not cold-resistant and needs to be moved indoors after the temperature drops in winter. It will easily get frostbite if left outdoors. After moving indoors, you must also pay attention to temperature control. The temperature should be maintained above 10 degrees so that it can safely survive the winter.

2. Increase light: It likes sunlight. The light is very mild in winter, so it should be placed in a well-lit place to get more sun. Sufficient light can better carry out photosynthesis, accumulate more nutrients, and increase the temperature of the plant itself to help it survive the winter.

3. Water and fertilizer management: Growth slows down in winter and the demand for water and fertilizer becomes lower, so it is necessary to control water and fertilizer. Do not water unless the soil is dry, and watering should be done at noon. Apply a long-acting fertilizer once before winter, and stop fertilizing after winter.

2. What to do if the leaves turn yellow

There are usually three reasons why its leaves turn yellow. One is that the soil is not suitable and it prefers slightly acidic soil. If the soil is too alkaline, it will hinder normal growth and cause yellow leaves to appear. The potting soil should be replaced as soon as possible. The second is too much watering, which will hinder the normal breathing of the roots. Over time, the roots will rot and yellow leaves will appear. The amount of water should be reduced and the soil should be loosened and ventilated more. The third is the lack of fertilizer. The amount of fertilizer required during the growing season is relatively large. Lack of fertilizer and nutrition will also cause yellow leaves. Fertilizer must be applied in time.