Walnut trees can be grafted, and it is generally best to graft in May-June, when the survival rate is the highest.

Grafting rootstock of walnut tree

Walnut trees are grafted with high-quality rootstocks. 1-3-year-old walnut seedlings are the most suitable rootstocks, and it is best to use semi-lignified and stout branches as rootstocks.

Step-by-step grafting method of walnut tree

1, cutting method: cut a small mouth at the lower end of the scion, and the incision can be coated with rooting water. Smooth the cross section of the rootstock and cut it vertically to the white wooden part of the tree. After cutting, the cut of the scion is attached to the wooden part of the rootstock, and then tied tightly with plastic strips.

2. Splitting scion method: First, sharpen the lower end of the scion, the length is about 6cm, flatten the cross section of the rootstock, and cut a knife from the middle. The wound length is appropriate to the scion length. After cutting, stick the scion on the incision of the rootstock, and then tie the scion and rootstock tightly with film.

Management of Walnut Tree after Grafting

1. After grafting 10 days or so, check whether it survives. If it can't survive, it needs to be replanted as soon as possible. If the petiole falls off or begins to sprout, it means survival.

Don't let it get wet after grafting, otherwise it will hinder its survival. In addition, when the surviving new membrane is about 5 cm long, the membrane can be uncovered.

3. When the new shoots grow to about 30cm, gently bind the new shoots with wooden sticks in time to avoid breaking branches in strong wind or heavy rain, and bind them 2-3 times with the growth of the new shoots.