After May, it is the most beautiful season of the year for hydrangea, looking at the beautiful pictures posted by others, some flower friends are sour: why do my hydrangeas always not bloom?
Improper pruning does not bloom
First determine what kind of hydrangea your family is, for example, in endless summer, the new and old branches are blooming, how to prune it, and it can always bloom if you give enough water and fertilizer;
Old branch flowering varieties, old branches can not be pruned randomly, pruned after the flowers are pruned every year, cut at the latest to the end of August, too late pruning the second year will not see the flowers, can only wait for a year!
Again, the varieties that bloom with old branches cannot be cut during the period when they bloom at the end of August ~ June of the following year. When pruning, you should also pay attention to the measure, if the old branches are pruned too hard, it will also lead to no flowering.
The branches are not protected from the wind during the winter, and they will not bloom the next year
If the hydrangea planted in the ground is raised in the open for winter, when it is too cold in winter, the old branches will be frostbitten and dried after losing their leaves, then it will not bud or bloom after spring!
For these hydrangeas, you can wait for the hydrangeas to lose their leaves in winter, use hay to close the branches (and do not let the hydrangea branches break), cover them with film, put another layer of grass, cover them with another layer of film, press the edges of the film, and then cover them with snow and ice. In this way, the hydrangea planted in the ground will bloom normally in the second year!
The old branches bloom and must be kept warm in winter. But the temperature should not be too high, for example, some flower friends put the flower pot in the heating room, and it will be warm all winter, and it will not bloom in spring, because the differentiation of hydrangea buds requires a certain temperature difference!
If you are exposed in winter and the old branches cannot protect from the cold, you can choose to raise some varieties that can bloom both new and old branches, such as the Annabella series, the Endless Summer series, and all the hydrangeas. However, the weak seedlings that have just been planted in the first year must also be protected for the winter, and they can start from the second year without worrying.
Insufficient nutrition does not bloom
If you want to flower, of course, water and fertilizer are indispensable, hydrangea watering to see dry and wet, don't expand it, let's talk about fertilization.
After the new shoots and new leaves come out in spring, you can start fertilizing, you can use strong branch fertilizer in the early stage, and the better use is Hua Duoduo No. 10 fertilizer, which is a nitrogen fertilizer-based granular fertilizer, diluted into a thin fertilizer solution, once a week.
When the flower buds begin to appear, change to Huaduoduo No. 2 or potassium dihydrogen phosphate fertilizer, which is phosphorus and potassium fertilizer, to promote flowering.
If you only use nitrogen fertilizer and lack phosphorus and potassium fertilizer, you will only grow leaves and not flowers.
Potassium dihydrogen phosphate, to prepare more, spray leaves with water or water, the flowering effect is good and safe, and other flowering plants can also be used.
The light is not good and does not bloom
Although hydrangea is shade-tolerant, like astigmatism, but sometimes the light is not enough to grow weak, it will not bloom, the flower friend "nature home" hydrangea is particularly good, she shared the experience is: spring full sun care, help to sprout more, strong, so that the root system is also very good, in the summer will be more sun-resistant.
In the summer, it is no problem to put it under astigmatism, and give enough water once a day or two. After pruning in July and August, it is directly exposed to the sun, and the soil is not dry or watered, and it is dried until spring. Of course, fertilizer and water are indispensable, according to this method to raise, the first year is a small seedling, the second year will burst the pot!
The root system is not good and does not bloom
Hydrangea seedlings with weak root system may not bloom in the first year, and will not bloom until the second year; usually if you water too much, the soil is clay and wet, and the leaves are wilted and yellow, etc., it may be a stuffy root, which will also affect flowering, so raise hydrangea, potting soil must be breathable!
Finally, let's talk about cuttings, choosing the right time for cuttings will allow you to see the flowers as soon as possible!
For example, if the old branch flowering variety, if it is cut in the spring, it will not bloom in the same year, and it can only wait for the next year! But if it is a winter cutting, then it will bloom in the spring and summer of the next year!
The endless summer series, where both new and old branches bloom, can be cut at any time to avoid the season of high temperature and black rot.
Source: Flower Raising Daquan