Why the hydrangea paniculata, tree-like, large-leaved does not grow
- Common causes of the problem
- Poor growth due to poor root condition
- Poor growth due to non-compliance with pruning rules
- Poor growth due to disease
- The reasons for the lack of flowering in some species and varieties
Hydrangea is a beautiful and fairly common garden shrub. It can grow not only in the garden, but also in a pot. At the same time, both amateurs and professionals are often faced with the fact that hydrangea grows poorly, what to do if its development stops, the flower does not release new shoots?
To resolve this issue, you should know why hydrangea does not grow, and how to solve such problems.
Common causes of the problem
There can be many problems with the development of a flower, the main one is the state of the soil or the environment:
- cold winter, frosting of the tops of twigs, buds;
- early opening of hydrangea in spring and unexpected frosts;
- a variety that is not able to grow in the planting region due to the unsuitable climate;
- low acidity of the earth;
- insufficient liquid, poor and weak watering;
- heavy earth, poor air permeability;
- the plant is not fertilized, lack of nutrients, poor quality soil;
- the appearance of pests or diseases that inhibit the growth of the plant;
- pruning was carried out without taking into account the rules, and the buds of the bush were cut;
- hydrangea roots are damaged for various reasons.
It is in the springtime that you can see the condition of the bush. If the plant wakes up hard, does not release new young twigs, the buds do not bloom well, the inflorescences do not form, or there are few of them, small flowers, this indicates a problem that needs to be urgently addressed.
Poor growth due to poor root condition
It is the roots of the plant that carry the basic information about the plant: if they are damaged, then the above-ground part will feel bad. The main causes of root damage are:
- diseases (fungal or infectious).
With a flower that grows at home, everything is simple: just take it out of the container along with a lump of earth and check the condition of the roots. It is best to clean the soil, carefully remove the damaged and sore parts, rinse with clean water. Watering with a weak solution of potassium permanganate will have a good effect on the root system of an indoor flower. In specialized stores, you can buy a root strengthener that will help the plant.
Such a check is accompanied by further transplantation into new land, a couple of weeks after this procedure, top dressing should be carried out.
Why hydrangea grows slowly in the garden is also an exciting question. In this case, the condition of the roots is checked a little differently. It is necessary to remove the top layer of soil and check the visible part of the root system. If all is well, diseases, pests and other damage were not found, then you need to fill everything with fresh earth from above, feed with fertilizer.
If problems are found, then the plant must be urgently treated so that it does not finally die. The easiest way is to dig up the shrub and plant it in a new location in fresh soil.
Poor growth due to non-compliance with pruning rules
Hydrangea forms shoots on last year's shoots, which means that when pruning, you should know exactly which branches can be cut and which can not. If an inexperienced gardener does the wrong pruning, you may not see the flowers for several years.
In addition, when covering the plant for the winter, special attention should be paid to the upper parts of the shoots. So that they do not freeze, they are bent closer to the ground, where heat is better retained. It is also important to purchase hydrangea varieties that are adapted to the growing region. The plant must have time to form buds, in the northern regions the summer is not long enough for this to happen.
Poor growth due to disease
What if the hydrangea is not growing? Here, the cause can be not only diseases, but also pests. Treatment will vary from case to case. Most often, the cause can be detected with the naked eye, it is enough to look closely at the bush: pale leaves, a sluggish state, the presence of pests, etc.
Chlorosis is a disease that primarily affects the size of foliage and inflorescences (they become small), and also the greens turn pale. This is often due to the long growth in the same place. It is useful to periodically use Ferovit, Antichlorosis or Agricola. All products have instructions on the packaging, which should be strictly followed.
Gray rot is a fungus that damages hydrangea when over-watered or during periods of heavy rainfall. Treatment with Fundazol will help, it is also necessary to cut off all the areas that the disease has damaged and burn them.
Powdery mildew can destroy the bush, in which characteristic yellowish or green spots appear. Such a shrub will die quickly enough if you do not help him cope with the disease. In this case, Skor, Topaz or Fitosporin-B are used.
It happens that high temperature is combined with high humidity, then there is a risk of peronosporosis. Treatment with an aqueous solution of copper sulfate with liquid soap in a proportion of 10 l * 20 g * 150 g, respectively, will help.
A shrub is treated with copper sulfate if it is sick with septoria. You can determine the disease by the brown spots that appear on the foliage. Ring spot is the most dangerous disease, the plant can no longer be saved, it is best to uproot and remove it from the site. At the same time, remove the clod of earth in which the hydrangea grew.
In addition to various diseases, pests can greatly spoil the appearance of the shrub, among them aphids, spider mites, slugs and snails, as well as nematodes, especially often attack.
The first signs are easy to see: the leaves wither, fall off and acquire a yellowish tint. The simplest folk method is spraying with an aqueous solution of garlic and liquid soap. To do this, dissolve 50 g of soap in 10 liters of water and add 250 g of chopped garlic cloves. For two days, this mixture is infused, after which you can spray the hydrangea. With snails, Confidor or Calypso helps a lot.
The reasons for the lack of flowering in some species and varieties
In addition to the fact that the hydrangea may simply stop growing, some gardeners are faced with the fact that there are no flowers on the shrub. This may mean that the plant is low in nutrients, a lot of sun, or the buds were frostbitten in winter. In addition, the wrong transplant can also lead to sad consequences.
Adaptation after disembarkation
If a seedling was planted in the spring, then in the first year it may not decorate the garden with its flowering. This is due to the fact that the plant takes some time to adapt. Even if all the activities are carried out correctly, all the roots are preserved, watering is carried out according to all the rules, the shrub is fertilized according to the norms, this does not mean that flowers will necessarily appear in the first year of life.You should wait a little until next year, and the hydrangea will certainly delight you with its unusual and beautiful flowers.
Unsuccessful seedling planting site
Hydrangea really does not like direct sunlight, which means that it should be planted in partial shade or even in the shade. Best of all, when the bush is illuminated by the sun early in the morning, the rest of the day is in a shaded place, then it will grow more actively. As a last resort, you can make a canopy that will cast a shadow in the hottest time. Then there will be no question why the hydrangea is growing slowly. If the shrub is in the shade all the time, then this can also cause the lack of flowers, therefore the place for the plant should be chosen especially carefully.
In order for the acidity to meet the requirements of the hydrangea, it is enough to add 500 g of Bordeaux liquid to 10 liters of water and water the bush.
Frostbite of the kidneys in winter
Depending on the type of hydrangea, it tolerates frost better or worse. For example, paniculata is considered the most frost-resistant, therefore it can most often be seen on personal plots. Arboreal and large-leaved are not so well resistant to frost and will require better shelter.
If the buds are damaged by frost, then the hydrangea may not bloom in the spring, therefore, the insulation should be approached more carefully, especially when growing delicate varieties of the plant. It is somewhat more difficult to identify the reason why the paniculate hydrangea variety does not grow.
Lack or excess of moisture
If you don't water it properly, the hydrangea may also fail to bloom. Severe drying out of the soil will lead to unformed inflorescences, excess moisture - to plant disease and lack of flowers.
In this case, the water should be rain or settled. With its high rigidity, you can also encounter problems with the growth and flowering of hydrangeas. The liquid should not contain excess lime, it is better if these suspensions settle to the bottom of the vessel before watering. To do this, fill a large container with water and wait a couple of days. Then you can water.
With proper care and disease control, the plant will delight every year with its lush flowering and unusual flowers. It is enough to regularly inspect and take measures if necessary, then it will be possible to grow a beautiful and large bush.