Generally speaking, spring and autumn are OK. However, the survival rate of cuttings in spring will be higher. If you choose spring, you'd better cut after flowering. In this way, not only can promote the growth of new branches and leaves, promote the next year's flowering, but also can cut propagation, kill two birds with one stone
(1) it is necessary to select robust and disease-free leaves as cutting materials, so that it is easy to succeed. Cut them off and soak them in a fungicide for about 20 minutes, such as carbendazim. Then take it out to dry. Then, apply some rooting powder near the incision.
(2) we should also pay attention to the selection of matrix. It is better to have loose, breathable and nutritious soil. Generally choose perlite and add some vermiculite in it.
(3) after the preparation, insert the material into the matrix as deep as possible. Then, put it in a cool and well ventilated place for maintenance. The water is very heavy. We should make sure that the soil is wet, but not too much. Generally, water every four days or so, not too much.
(4) wait for about eight or nine days, and you can see the roots grow out. At this time, the cutting is successful. After growing roots, they should still be placed in a cool and ventilated place. About a week later, normal maintenance can be carried out and light can be seen