During the growth of oleander, attention should be paid to shaping and pruning, which should be carried out 1 time every year. When pruning, generally three main branches are left on each trunk, and three branches are left on each main branch, and each branch should be cut 20 ~ 30 cm away from the base, so as to keep the beauty of the tree and ensure that the branches are full of flowers. In addition, oleander plants have strong tillering ability, and whether planted in the ground or potted, it is easy to grow many tillers from the base. In order to reduce nutrient consumption and maintain a graceful posture, tillers should be cut off in time. Nerium oleander likes fertilizer, and dilute liquid fertilizer 1 ~ 2 times should be applied before and after flowering. During the growing period, the water can be a little more. In case of continuous rainy days, water should be removed in time to prevent root rot, and attention should be paid to keeping dry or not watering in winter.