Hydrangea pruning in spring is mainly based on plastic surgery, which can blossom better. First, the diseased branches, weak branches and dead branches should be trimmed, and then the branches with dense hydrangea growth should be trimmed to improve the light transmission and ventilation of the whole plant.

Hydrangeas will bloom on the newly grown branches. You can cut the old branches short, keep a few buds, stimulate the growth of new branches, and let more flowers bloom at flowering stage. In addition, we also need to consider the growth of plants themselves. If the growth is weak, you can cut off more branches to reduce the consumption of nutrients and restore the vitality of the plants as soon as possible.

Matters needing attention in hydrangea planting

1, hydrangea planting soil is loose, fertile and well-drained sandy loam. However, the color is affected by soil pH, and the flowers in acidic soil are blue and those in alkaline soil are red.

2. Water: The pot soil for planting hydrangeas should be kept moist, but it should not be watered too much, especially in rainy season, to prevent root rot caused by waterlogging. Indoor potted plants should be slightly dry in winter. If it is too wet, leaves rot easily.

3. Illumination: Hydrangea is a short-day plant, which should be cultivated away from the scorching sun, and 60% ~ 70% shading is the best. When the light is too strong in midsummer, proper shading can prolong the flowering period.

Refer to the above? Baidu encyclopedia-hydrangea