1、 How many months

Generally, it is better to dig wild elms in winter and spring, that is, March and April. At this time, the elm enters the dormancy period, and the survival rate of digging stump planting will be improved. In addition, it is best to dig stumps in cloudy days or light rain, which can avoid excessive water consumption and is conducive to the survival of stumps. If the excavation is carried out in sunny weather, shading and moisturizing measures shall be taken in advance to prevent the branches and leaves from evaporating a large amount of water, which makes it difficult for the stumps to survive

2、 How

1. Pruning: prune the roots and branches before planting, and cut off the dead roots, diseased roots and too messy roots. When pruning the roots, there may be viscous SAP flowing out. Apply a thin layer of ointment to the incision, or if it oozes out, sprinkle it with red clay

2. Pile raising: elm stumps excavated in the field should be planted in river sand land or in pots to raise piles and improve their survival rate. Do not spray water or soak it immediately, otherwise it will lead to excessive humidity in the root or trunk, and the wound is difficult to heal, which will seriously affect the survival rate of elm

3. Soil: sand or sandy soil can be selected as the culture substrate, and moisturizing work should be done for the substrate

4. Light: shading measures shall be taken in the first year of planting. Especially in summer, avoid direct sunlight and exposure. The temperature turns cool in autumn, so that the plants can receive light appropriately

5. Watering: don't water the plants after planting, just take moisturizing and thermal insulation measures. After about 3-5 days, you can pour fixed root water for it