1、 Increase watering

Lily of the valley is suitable for growing in relatively humid soil. If it can not meet the water demand of the plant, the plant is prone to poor growth. Therefore, it needs to be watered more in spring. Generally, it needs to be watered every day. If the temperature is too high, it needs to be watered sooner or later. The watering time should avoid the high-temperature time. Watering at the high-temperature time, the water evaporates before the plant can absorb the water, which can not achieve the effect of watering

2、 Increase fertilization

It likes fertilizer and needs more nutrients, but it is not resistant to concentrated fertilizer. Therefore, when choosing fertilizer species, try to choose fertilizer species with moderate fertilizer effect. If farm manure and animal manure can be used, it is best. If it is chemical fertilizer, it is best to dilute the fertilizer and then use it twice a month

3、 Control temperature

It is a delicate plant. It has strict requirements for temperature. Too high or low will affect its growth. In serious cases, the plant will be damaged. The temperature suitable for its growth is between 18 and 25 degrees. The temperature in early spring is unstable and often cold in spring. Therefore, it is not suitable for open field maintenance before the climate is stable. Open field maintenance can only be maintained after the climate is stable

4、 Increase illumination

It is not a sun loving plant, but it cannot grow without sunshine. The amount of light needs to be increased slightly in spring. Generally, the amount of light in spring cannot exceed 5 hours a day