1、 How to make Hydrangea bloom

1. Light: Hydrangea is afraid of exposure to the sun, but lack of light will affect its flowering. In summer, you should pay attention to sunscreen, sun in the morning and evening of spring and autumn, astigmatism maintenance at noon, all sunlight maintenance in winter, and ground planting should be planted in the corner of the wall or under the shade of the tree

2. Fertilizer and water: during the growth period of Hydrangea, soybean cake and chicken manure can be applied every 2-3 weeks to Rett the rotten diluted liquid fertilizer to promote plant growth and flower bud differentiation. In the early flowering stage of Hydrangea, phosphorus and potassium fertilizers such as bone meal and chicken manure can be applied to promote its flowering

3. Temperature: if you want Hydrangea to bloom, you can put the plant in the environment of 5-7 ℃ for 6-8 weeks, and then put Hydrangea in the environment of 20 ℃ for flower induction. After the flower buds appear, keep the curing temperature at 16-18 ℃, and Hydrangea can bloom in about two weeks

2、 What to do after flowering

1. The most common type of Hydrangea is the large hydrangea. Only the old branches of this kind of Hydrangea can bloom, so it is necessary to prune the plants in time after each flower failure, and the pruning should be completed before the end of August every year. Otherwise, the flower buds of Hydrangea will differentiate in September, and if it is cut again, it will not spend the next year

2. When pruning, the residual flowers and two pairs of leaves under the flowers should be cut off. After pruning, Hydrangea will grow two full bud points at the leaf axils of the leaves at the top of the branches. One branch will become two branches, and it will blossom wildly on the old branches in the coming year