Reasons why the leaves of Catharanthus roseus curl downwards

1. Reasons

1. Low temperature: The leaves curl downwards, mostly because the temperature is too low. The plant cannot withstand the cold. Once the temperature drops, the plant will be frostbitten, and it will protect itself, causing the leaves to curl downwards.

2. Lack of sunlight: Catharanthus roseus has a high demand for light and needs sufficient sunlight to grow. If there is no sunlight, its growth will be affected, and it will grow weak and poorly, causing the leaves to curl.

3. Inadaptability: If the plant has just been potted or moved to a new environment and is not adapted to the surroundings, it may become curled in a short period of time.

2. Solution

1. Increase the temperature: Move the plants indoors in time in winter. Pay attention to keeping warm and adjust the temperature to above 10°C. If you want good growth, it is best to keep it above 15°C.

2. Provide light: If there is a lack of sunlight, you can move it to a place where light can reach it, so that it can be exposed to sunlight and promote photosynthesis.

3. Wait for adaptation: This situation does not require too much intervention. Just leave it there and maintain it carefully, waiting for it to adapt and recover on its own.