Can I prune Rosa roxburghii on snowy days?

Rosa roxburghii can be pruned in snowy weather.

Rosa roxburghii can be pruned in snowy weather, usually from June 1 1 to February of the following year, and the best pruning period is from June 12 to June 1. Because the leaves of pear trees began to fall off in June 165438+ 10, the photosynthetic products of leaves were transported from leaves to annual branches → biennial branches → perennial branches → main branches → roots; In spring, it is transported upward through the root system, from trunk and main branch to annual branch. During the period of 12~ 1, the photosynthetic products stored in the branches were the least, and the pruning in winter weakened the trees the least. However, if the tree is too strong, it needs to reduce the pressure on the tree and prune it later.

Matters needing attention in pruning Rosa roxburghii

1. The height of Rosa roxburghii should be kept at about 1.5-2m, and the crown width should be kept at about1.5m. The whole tree needs 5-8 main branches to facilitate its subsequent results.

2. In the early stage of planting Rosa roxburghii, pruning is not needed. During this period, it should be allowed to grow freely, promote fruit and form a crown.

3. In the late stage of Rosa roxburghii planting, it is necessary to prune the branches that are too dense, drooping and too long to make them bear the main fruit.