1、 Change water frequently

During water culture, the first thing to pay attention to is to change the water frequently to ensure the clean water quality. Moreover, the oxygen content can be higher if the water is changed frequently, which is more conducive to the growth of hydrangea. However, the number of times should be appropriately reduced after rooting in the later stage to avoid damaging the root system. If mildew occurs, it indicates that rooting fails and should be stopped in time

2、 Rooting agent

During hydroponic maintenance, the bottom of branches shall be soaked with rooting agent before water is inserted, so as to facilitate rooting and shorten rooting time. In addition, it should be noted that the part inserted into the water should not have leaves, and all the leaves at the bottom should be removed, otherwise it is easy to rot in the water, resulting in rooting failure

3、 Block light

During water cultivation, it should be placed in the place with weak light or no light as far as possible, and the sun will accelerate the withering, especially the strong light. In addition, we should also pay attention to shielding the strong wind. At the initial stage of maintenance, we should not put it on the windowsill to be blown by the strong wind, otherwise the leaves will wither and fall