To promote the rooting of flowers and trees such as Milan, crape myrtle, honeysuckle, winter plum, sweet-scented osmanthus, camellia, rhododendron, white magnolia, etc., which are difficult to root, in addition to treatment with auxins such as naphthalene acetic acid, some economical and convenient methods can also be used to promote their rooting. 1Immerse 2 cm of the base of the cuttings in a 0.1%~0.5% potassium permanganate aqueous solution and soak 12...