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The hydrangeas are plants of Asian origin, very rustic and easy to cultivate, with deciduous leaves. These plants produce flowers on the new branches, so pruning is done to stimulate the development of new shoots. To maintain the compact shrub and stimulate flowering it is advisable to prune the hydrangeas every year. Proceed in the autumn or towards the end of winter, when the plant is in vegetative rest. First of all the wilted flowers and the ruined, stunted, twisted or sick branches are removed. Then proceed cutting all the branches by shortening them by about a third of their length.
In late autumn the hydrangeas already present the enlarged buds that will develop the branches of the following year, therefore when we prune the old branches we come up to a well developed gem, which is possibly placed towards the outside of the shrub. We avoid excessive pruning, which could cause the presence of many new branches, and therefore an excessive number of flowers, which would therefore tend to be too small.
Pruning of hydrangeas should also be done during the growing season, in fact it is it is advisable to remove the withered flowers, especially if very large; also during the year also, on the plants in vegetation, we remove the weak or ruined branches from the bad weather.
How to prune hydrangeas: The cutting of hydrangeas
In addition to the era and the cutting methods, in the hydrangea pruning The way in which the cut is made is very important. For pruning it must use sharp and clean tools, such as pruning shears and shears.
These tools must be well sharpened to allow a precise and clean cut that does not produce fraying. A clean cut allows to considerably reduce the possibility of fungi and pathogens entering because it reduces the exposed surface. In pruning, you must also make oblique cuts with the widest part downwards so that the water flows downwards thanks to the force of gravity.
This small precaution is important to prevent the formation of water stagnation on the cut surface which could eventually cause the onset of mold and fungus. Mushrooms are very dangerous for plants, especially when they are cut because pruning opens up numerous pathways to pathogens.