Why do some flowers need asexual reproduction?

Asexual propagation uses branches, buds, leaves, root tillers, tubers and bulbs on the female plant to breed new plants by cutting, grafting, striping, splitting and other methods. Here are the reasons why some flowers need to reproduce asexually:

1, there are many flowers, because the ovary degradation can not bear fruit, such as poinsettia, Fusang and so on. Some flowers native to tropical and subtropical regions are also difficult to blossom and bear fruit in the north, such as tortoise back bamboo, Milan, jasmine and so on, so these flowers need to reproduce asexually.

2. In addition, many flowers are excellent varieties selected by cross breeding, and the excellent characters of these varieties can only be maintained by asexual reproduction. The method of asexual reproduction can enhance the stress resistance and improve the ornamental value, such as many varieties of cactus, their own root system is relatively weak, grafted on the three-rowed arrow with strong growth potential, its growth and reproduction are relatively rapid.

3. Some flowers can blossom early by asexual reproduction, such as peony, orchid, sweet-scented osmanthus and so on.