1、 Watering time

The plant is watered in four seasons. Watering is generally carried out on sunny days. If it is cloudy and rainy, the humidity is relatively high, and there is a risk of ponding. Although the plant is resistant to humidity, it may also breed bacteria, which is not conducive to its growth. In addition, watering in summer should avoid noon, so as to avoid the decline of ground temperature caused by water evaporation and frostbite the roots of plants

2、 Watering interval

The watering interval of Pennisetum is different in different periods. Generally, in spring and autumn days, the growth rate of plants is very fast, and the demand for water is relatively high. Generally, it needs to be watered once every two days. In summer, high temperature will lead to rapid evaporation of water, so it is necessary to water every day and spray water appropriately to increase humidity. It can be watered once every 10 days in winter, and pay attention to water control

3、 What kind of water

Generally, it is necessary to use river water or rain water to water the plant. This kind of soft water has a certain acidity, which is very helpful for the growth and development of the plant. If tap water is used, it needs to stand for a period of time and then wait until the chlorine volatilizes, which will not affect the growth of plants. In addition, ferrous sulfate or white vinegar can be added to the water to acidify

4、 Precautions

The herbaceous body of Tongqian is relatively moisture resistant, so it is not a big problem to water more, but the cold resistance of the plant is not very strong. Therefore, pay attention to the water temperature when watering in winter. If the water temperature is too low, it needs to be placed indoors and watered when the water temperature is close to the room temperature. In case of hydroponic culture, the water needs to be changed regularly to avoid the reduction of water quality