1、 How to maintain in winter

1. Timely entry: Catharanthus roseus is not cold resistant. It should be moved indoors after cooling in winter. It is easy to be frostbitten outdoors. After moving indoors, we should also pay attention to temperature control. The temperature should be maintained above 10 degrees, so that we can spend the winter safely

2. Increase light: it likes sunshine itself. In winter, the light is very mild. It should be placed in the light place to let it bask more in the sun. Only with enough light can it carry out photosynthesis better, accumulate more nutrients, and increase the temperature of the plant itself to help survive the winter

3. Water and fertilizer management: if the growth slows down in winter, the demand for water and fertilizer will become lower, so we must control water and fertilizer. If the soil is not dry, it should not be watered. Watering should be carried out at noon. A long-acting fertilizer should be applied before winter, and the fertilizer should be stopped after winter

2、 What if the leaves turn yellow

Its yellow leaves are usually caused by three reasons. First, the soil is uncomfortable and likes slightly acidic soil. If the soil is too alkaline, it will hinder normal growth and be prone to yellow leaves. Replace the basin soil as soon as possible. Second, too much watering will hinder the normal breathing of the root system, and the root will rot and yellow leaves will appear after a long time. Reduce the amount of water and loosen more soil for ventilation. Third, there is a lack of fertilizer. The fertilizer demand in the growing season is relatively large. Lack of fertilizer and lack of nutrition will also cause yellow leaves. It is necessary to apply fertilizer in time