How to propagate ginkgo, how to propagate ginkgo trees

1. Cutting

Ginkgo cuttings are divided into old branch cuttings and tender branch cuttings. Cuttings of old branches are usually carried out in March and April. Select 1-2 year old thick branches, cut them into 15-20 cm long cuttings, cut the bottom into horse ear shape, bundle 50 branches into a bundle, wash them with clean water, soak the bottom in rooting water, and then insert them into the seedbed. For softwood cuttings, you have to wait until May or June. Choose branches that have not yet become woody as cuttings. The length can be two centimeters, and 2-4 leaves should be retained. Insert it into a pot, place it in scattered light, and spray water on the leaves appropriately.

2. Division

Only female ginkgo plants that have grown for many years will have suckers at the roots. If not, the reproduction of new suckers can be promoted by cutting the roots. Generally, in July and August every year, the root suckers are ring-barked and then soil is added on top. New roots will grow at the ring-barked parts in about a month, and they can be separated and planted in the spring of the following year.

3. Sowing

After harvesting the ginkgo cones, they need to be dried and stored, and then the skins can be removed and the seeds taken out for planting in the spring of the following year. Sowing should generally be done in places with higher terrain and good drainage, where irrigation is also more convenient. First level the ground, apply enough base fertilizer, and turn the fertilizer into the ground. After watering the base, put the seeds in with the bud tip facing downwards.

4. Grafting

Grafting is one of the most common methods of ginkgo propagation, and the options include cleft grafting, cut grafting, bark grafting and bud grafting. Taking cleft grafting as an example, a 5-year-old sapling is selected as the rootstock, and the scion should be a strong tree with 1-3-year-old thick branches cut. Cut the bottom of the scion into a wedge shape, split the rootstock in the middle, insert the scion into the split, and tie it tightly with plastic film to prevent moisture from entering.