First, the pruning method of hydrangea 1, pruning residual branches and diseased leaves
During the growth of hydrangea, some diseased leaves will inevitably appear, and they should be pruned in time to avoid the waste of nutrition and the infection of germs. Let the plants concentrate on nutrition, which is beneficial to the next flowering.
Step 2 prune rotten flowers
Hydrangea needs to consume a lot of nutrients to keep the flowers open. In order to avoid excessive waste of nutrients, when the flowers begin to rot and are not ornamental, the residual flowers can be trimmed directly from the branches below the flowers.
3. Dead branches after pruning flowers
There will be a certain amount of dead branches after hydrangea blooms, so we must always observe the growth of plants after hydrangea blooms. If dead branches are found, they can be pruned above the healthy bud point to concentrate nutrients on the bud point and promote their germination and growth.
Step 4 Trim the shape of the branches
Domestic hydrangea potted plants naturally want beautiful shapes. In the process of maintenance, if the branches that are too dense and too long and weak are found, appropriate thinning is needed to make the hydrangea more stretched and the plant shape more beautiful.
5. Pruning in different seasons
Hydrangea has a long flowering period, from spring to autumn. If it is pruned after spring, it can be pruned above the bud point near the flower, not too long. If it is pruned after flowering in autumn, because there is basically no bud on the branches, you can cut the branches shorter. Just like the illustration of hydrangea pruning method above.
6, different varieties of pruning
Generally speaking, hydrangea can be roughly divided into native hydrangea and exotic hydrangea. Soil hydrangea mainly blooms with old branches, and only residual flowers need to be cut after flowering; However, the post-flowering pruning of foreign hydrangea should take into account the later modeling. To make the plant form a ball, the middle part needs to be smoother and the edge part needs to be cut short, so the shape will be more beautiful.
Second, the cultivation method of hydrangea 1 and proper watering.
In spring and autumn, just keep the soil of hydrangea slightly wet and water it 2 ~ 3 times a week. Because of the high temperature in summer, you can water once a day, but the amount of water should be reduced appropriately to avoid water accumulation and rotten roots; Be sure to water less after winter, just once every half month. Usually the air is dry, so you can properly spray water and fog to keep the humidity.
2. Proper lighting
Warm sunshine in spring and autumn is not a big problem for hydrangea, but the strong light of the scorching sun in summer must be shielded, and hydrangea should be placed in a cool and ventilated place to avoid burning leaves and falling off. In winter, you can put it in a sunny place indoors for the winter. Proper light can make hydrangea accumulate nutrients and bloom more and more brightly.
3. Rational fertilization
During the growth period of hydrangea, the decomposed organic thin fertilizer can be applied once every half month, mainly nitrogen fertilizer, and an appropriate amount of ferrous sulfate can also be applied to change the pH of the soil. During the budding of hydrangea, nitrogen fertilizer should be stopped and potassium dihydrogen phosphate fertilizer should be used to promote flower bud differentiation and make more flowers open.
Step 4 control the temperature
The suitable temperature for the growth of hydrangea is 18 ~ 28℃, and it can promote flowering at 20℃. After flowering, controlling the temperature at 65438 06℃ can prolong the flowering period. The temperature should not be lower than 5℃ in winter to avoid frostbite and freezing, but it takes 6 ~ 8 weeks at 5 ~ 7℃ to promote flower bud differentiation.
Conclusion: After reading the above, I believe everyone should know how to prune hydrangea. Proper pruning can make hydrangea plants accumulate more nutrients, not only promote growth, but also produce more flowers.