1、 Watering formula for elm bonsai

See dry and see wet: when watering elm bonsai, follow the watering formula of see dry and see wet. Generally, you need to wait until the soil is dry before watering. If the soil is still wet, don't water at this time. To judge whether the elm bonsai is short of water and dry, you can observe the soil surface. If the soil surface is white and dry, and the soil is slightly hardened, it indicates that the elm is short of water and can be watered normally

Dry through watering: when watering elms, you also need to follow the formula of dry through watering. When watering, you can pour it through at one time until the bottom of the flowerpot can flow out, so as to promote the infiltration of water in the soil and make the root system fully absorb water. Elm can't only be watered with half cut-off water, otherwise the root system at the bottom still can't get water and is still in a state of water shortage and drought. At the same time, elms should not be watered too much, otherwise a large amount of watering at the root will lead to stuffy and rotten roots

2、 Precautions for watering elm bonsai

Watering time: when watering the elm bonsai, generally choose to water in the morning or evening, and avoid watering in the high temperature period at noon. If the water temperature is too different from the soil temperature, it may cause root injury. When the temperature is cold in winter, you can choose to water near noon

Spray water for moisturizing: in addition to watering the normal roots of elm, spray water for moisturizing to the surrounding branches and leaves

Watering weather: when watering elm bonsai, if it is cloudy and rainy, watering can be suspended