The advantages of flower grafting propagation are as follows: ① It can maintain the excellent characteristics of the original variety. ② Fast seedling formation and early flowering. Grafted seedlings rely on the root system of rootstock to get enough nutrients and water, grow vigorously and bloom early. (3) It is suitable for some rare flowers that are difficult to cut and survive by layering. For example, the survival rate of Chimonanthus praecox cuttings is not high, but if Chimonanthus caninum or Chimonanthus praecox seedlings are used as rootstocks, the survival rate is high in early spring. ④ Because wild plants are often used as rootstocks for grafting, the ability of flowers and trees to resist cold, drought and diseases and insect pests can be improved. ⑤ It can improve the ornamental value of flowers. For example, branches and buds of different varieties and colors can be grafted on a rootstock to produce colorful flowers on Chinese rose, rhododendron and peony.

In addition, for precious flowers and trees with few mother plants, only one bud can be used to cultivate an excellent plant.