Robinia pseudoacacia

Safflower locust, also known as hairy locust, Jiangnan locust, locust for leguminous a variety. Because its stems, branchlets, pedicels are red thorn hair, hence the name "hairy locust." It has many flowers and colorful colors, which can be planted in groups or alone for garden scenery. The leaves of safflower locust are very similar to locust, odd pinnate compound leaves, opposite leaflets, 7 to 13, elliptic. Butterfly-shaped corolla, pink or purplish red, 2 to 7 into sparse racemes. Flowering sterility, pod development, generally do not bear seeds, it is difficult to use seed reproduction, multi-use locust for rootstock grafting.

Safflower sophora is a positive tree species, cold resistance, drought and barren resistance, in the acid or alkaline soil can grow. However, the soil is too sticky or poorly drained low-lying land, easy to rot root death. It grows fast, resistant to pruning, sprout strong, anti-smoke and harmful gases such as hydrogen fluoride, ozone and other strong ability, is an excellent greening and beautification tree species. The propagation of safflower locust tree, mostly with locust as rootstock line cutting (shrub) and high branches (small arbor). Methods: From the end of March to the beginning of April, the rootstock of Robinia pseudoacacia L. was grafted by cutting grafting method. Grafting to choose healthy rootstock and scion, rootstock from the ground 10 cm cut, with a sharp knife from the middle split, and cut the safflower locust scion wedge insertion, cortex to close, a little tied, buried tightly, after two weeks can survive, and then remove the soil, timely cut off the tiller bud. After the tree survives, it grows very quickly and usually flowers in the second year. High grafting is to select large specifications of locust, grafting at a certain height, so that the formation of small arbor. After survival, safflower locust grows very fast, canopy extension is umbrella-shaped, the next year can blossom, very beautiful. Every year, it is necessary to carry out plastic pruning, thinning cross branches and overlapping branches, and maintaining the integrity of the crown.