White magnolia won't bloom? Learn the needle-prick method to encourage flowering
How do you use the needle-prick method to make white magnolia bloom?
By pricking and piercing the new shoots of the white magnolia, you can inhibit its vegetative growth and promote flower bud differentiation and growth.
The specific method is: use a sewing needle or pin, at 0.1-0.2 cm above the node on the first section of the top of the main shoot and side shoots, prick 1-2 needle holes, either penetrating or not penetrating, to break the growth dominance of the main and side terminal buds and inhibit the vertical growth of the main and side terminal buds. Then, at 0.1-0.2 cm below the bud of each node on the main and side shoots, prick one needle vertically and one crosswise, with the holes either piercing through or not piercing through; this can destroy and reduce the transport function of nutrients in the phloem moving downward, helping to break the vegetative growth tendency of the axillary buds. Because of the stimulation from the wound, the axillary buds may transform into flower buds, which can greatly accelerate flower bud differentiation, and the large leaves growing at that site can be used to provide the necessary nutrients for flower bud growth, clearly promoting flower bud swelling. Generally, after the needle-prick treatment, flower buds with stalks can be seen emerging in the leaf axils within 20-30 days.
The specific method is: use a sewing needle or pin, at 0.1-0.2 cm above the node on the first section of the top of the main shoot and side shoots, prick 1-2 needle holes, either penetrating or not penetrating, to break the growth dominance of the main and side terminal buds and inhibit the vertical growth of the main and side terminal buds. Then, at 0.1-0.2 cm below the bud of each node on the main and side shoots, prick one needle vertically and one crosswise, with the holes either piercing through or not piercing through; this can destroy and reduce the transport function of nutrients in the phloem moving downward, helping to break the vegetative growth tendency of the axillary buds. Because of the stimulation from the wound, the axillary buds may transform into flower buds, which can greatly accelerate flower bud differentiation, and the large leaves growing at that site can be used to provide the necessary nutrients for flower bud growth, clearly promoting flower bud swelling. Generally, after the needle-prick treatment, flower buds with stalks can be seen emerging in the leaf axils within 20-30 days.