1. Pruning: through shaping, remove the main branches to promote the germination of plants when they are young, and then cut off too many side branches with poor growth, so as to achieve full plant shape, low plants and improve ornamental value. This method is often used to dwarf Chinese rose, bouquet of safflower, azalea and foliage flower.
2. Asexual propagation: Grafting, cutting, layering and other asexual propagation methods can achieve dwarfing effect, shorten flowering period, reduce plant height and make plants compact. Grafting can be dwarfed by selecting dwarfing varieties. The cutting time can be considered to determine the plant height. For example, chrysanthemum can achieve dwarfing and control lodging when cutting in late July. In addition, dahlias with tall plants can be planted in pots with a diameter of more than ten centimeters by cutting with buds. The plant height is only a few feet, and the flowers are large and gorgeous.
3. Artificial bending: The branches are artificially twisted, so that the transportation channel of plants is blocked, the growth speed of plants is slowed down, and the low plant type of flowers is achieved. Generally widely used in the production of small bonsai.
4. Controlled fertilization: timely application of phosphorus and potassium fertilizer to potted flowers, less application of nitrogen fertilizer, and control of plant vegetative growth to achieve dwarfing.
5. Other measures: other dwarfing methods, such as chrysanthemum dwarfing with foot buds and narcissus dwarfing with needle carving.