The invention relates to a method for culturing a
cutting seedling of
Nerium oleander. The method comprises the following steps of: 1, selecting a
cutting object, wherein last-year old branches are selected in spring, and fully-lignified current-layer fresh branches are selected in summer and autumn; 2, taking spikes and splitting the branches, namely
cutting off the branches from a mother tree, preserving
moisture, cutting the branches into segments indoors to get spike segments, splitting each spike segment into 3 pieces by a sharp knife and preserving
moisture, wherein each segment keeps a section and each piece contains a sprout; 3, soaking cuttings split in the step 2 in clear water to wash part of juice and suck
moisture, and inserting the cuttings into a
nutrition bowl or a culture disc or a seed
bed, wherein leaves are exposed out of the surface of a substrate; and 4, performing
post insertion management, namely keeping soil moisture, frequently spraying water on the leaves to prevent the cuttings from water loss, controlling the temperature to be below 35 DEG C and shading to prevent strong
sunlight. The method has the advantages of fully utilizing cutting materials, improving
reproduction coefficient to the largest extent, along with simple and convenient technology and easiness of operation.