What are the methods for quickly rooting flower cuttings?

Spring is the best time for propagating flowers. When gardening enthusiasts propagate plants such as Milan (Aglaia odorata), crape myrtle (Lagerstroemia indica), wintersweet (Chimonanthus praecox), and osmanthus (Osmanthus fragrans) from cuttings, in order to promote root formation in the cuttings, besides using growth hormones such as naphthalene acetic acid (NAA), those flowers share the following methods to promote early rooting and increase the survival rate.

1. Treat cuttings with a white sugar solution. Concentration of the white sugar solution: 2-5% for herbaceous flowers and 5-10% for woody flowers. Soak the basal 2 cm of the cuttings in the above-concentration white sugar solution for 24 hours, then remove them, rinse off the sugar solution adhering to the outside of the cuttings with clean water, and they are ready for planting.

2. Treat cuttings with a potassium permanganate solution. Soak the basal 2 cm of the cuttings in a 0.1-0.5% potassium permanganate solution for 12-24 hours, then remove them and plant immediately.

3. Treat cuttings with medical vitamin B12. Take a vitamin B12 injection and dilute it with 1 part cool boiled water, soak the basal part of the cuttings in it for 5 minutes, then remove them, let them air for a moment, and once the liquid has been absorbed, they are ready for planting.

4. Perform girdling. During the flower's growing period, carry out ring-barking on the base of the branch so that nutrients accumulate in large amounts at the girdled site. At the dormant period, cut off along the girdled area and use it for cuttings, which can promote rooting.