Lush hydrangea bushes, like other garden crops, can undergo a number of typical diseases. A diseased plant loses its decorative appearance, foliage dries and inflorescences wither. Timely measures can save the flower.
Why do gardening or home hydrangeas dry (wither) leaves at the edges
Amateur gardeners who do not have enough experience may wonder why hydrangea garden withers. In fact, any external changes in the condition of the flower signal a violation of the conditions of care and maintenance, correcting which you can correct the situation.
Healthy plant bushes will decorate any area
Insufficient soil moisture
All varieties of hydrangea, whether large-leaved or paniculate, are moisture-loving.
Due to the drying of the soil in the root zone, the bush will begin to wither, the leaves will dry, curl.
How to reanimate hydrangea in this case? Everything is very simple - restoration measures of the bush growing in the open ground consist in proper watering and additional mulching of the planting site.
Excessive soil moisture
Excessive watering is also detrimental to hydrangea. Due to stagnation of moisture, the bush can drop foliage. If the greens begin to fall, it is important to understand that the drying of the leaves is just a consequence of the decay of the roots.
Attention! Only a transplant and subsequent moderate watering will help save the bush.
Low humidity
Excessively dry air is one of the main common reasons why hydrangeas dry leaves at the edges. A plant growing outdoors will be helped by regular spraying of the whole aerial parts.
A flower contained at home can also be irrigated with spray water. Some gardeners use household humidifiers for the same purpose or install a container of water near a hydrangea tub.
Over lighting
Drying of the leaves is often the result of excessive light. Hydrangea generally does not feel very well in the open sun and requires shading. In a brightly lit area, the bush begins to disappear. Transplanting or installing an artificial canopy near the plant can help in this situation.
A tub with home hydrangea is recommended to be installed on a window facing west or east.
Attention! When cultivating home hydrangea, it is important to prevent the leaves from touching the window glass, as delicate greens can get a serious burn.
Hypothermia
Hydrangea is a thermophilic plant; regions with cool climatic conditions and abrupt weather changes are not suitable for it. Due to sudden sharp temperature changes and gusts of wind, hydrangea begins to hurt, the leaves turn black and dry, the bush gradually withers.
Resuscitation measures will be reduced to normalizing the air temperature to the optimum level of + 20 ... +23 ° C. If it is impossible to create such conditions in the open ground, it is recommended to transplant the flower into a fairly capacious tub and transfer to home maintenance.
Heavy or dense soil
The density of the earth at the hydrangea planting site is very important for its comfortable existence and development.
The plant is shown loose, light, but nutritious soil. Clay soil will interfere with normal moisture removal from the roots and oxygen circulation in the root zone. Under such conditions, the root system of the flower will "suffocate", and the bush will suffer from a nutrient deficiency.
High or low soil acidity
For the normal development of hydrangea bushes, maintaining a certain level of acidity in the soil is required. The optimal pH should be in the range from 4.0 to 6.0. In an earth with an alkaline reaction, the leaf plates of the plant will begin to lighten and dry completely.
For reference! To increase the acidity of the soil by watering with acidified water. Experienced gardeners use citric acid for this.
Micronutrient deficiency
Nutrient deficiency also leads to the drying of hydrangea leaves. To prevent this from happening, the plant is alternately fertilized with organic and mineral compounds during the season.
- So that the greenery of the shrub does not turn yellow, since March it has been watered with nitrogenous top dressing.
- During the budding period, it is desirable to add potassium, phosphorus, iron.
- In preparation for winter, it is also recommended to use potassium phosphorus preparations.
Hard watering
Hydrangea is very sensitive to the composition of the water that it is shed on. This is especially true for the content of lime impurities. That is why to defend water in open containers exposed to open sunlight.
Watering should be carried out only with soft and warm water.
Incorrect shrub planting or transplanting
Quite often, hydrangeas begin to dry out leaves due to a violation of the planting technique. The problems in this case can be divided into damage to the root system of the seedling and planting in the wrong place.
Root damage
Gentle hydrangea roots require very careful handling when transplanting seedlings into open ground. That is why it is important to check the condition of the roots when buying a seedling.
Carrying out pruning of roots during planting is highly undesirable. The only exceptions are non-viable processes that are dry or dark brown. Healthy roots should be white.
Attention! All pruning procedures are performed with a disinfected tool, and the slices are sprinkled with crushed coal.
Incorrect location
Errors in choosing a site for planting may include other problems of drying hydrangea leaves:
- excess or lack of light;
- lack of protection against drafts and gusts of wind;
- excessive soil density and its inappropriate acidity.
The proper location of the seedling can save you from a lot of subsequent difficulties.
Causes of leaf blackening
When the hydrangea leaves begin to blacken and dry even with proper planting and proper care, you should carefully look at the bush for the presence of diseases. Moreover, the nature of blackening plays a key role in determining the ailment and methods of dealing with it.
Dry blackening
When the hydrangeas dry the edges of the leaves and their ends, then it can be said with a high degree of certainty that there is hard watering or the plant “burns” in the open sunlight.
To revive the plant, it is necessary to eliminate the cause of the dry black spots.
Wet blackening
The loss of elasticity and darkening of leaves indicates that the plant:
- suffered a sharp drop in temperature;
- suffers from waterlogging of the soil;
- not protected from gusts of cold wind;
- planted in too heavy and dense soil.
Attention! Also, the cause of wet spots on the leaves and the fact that they began to darken may lie in the infection of the flower with a fungal infection.
The leaves will blacken and dry due to the fungus.
Why do hydrangeas dry inflorescences
Due to the violation of planting rules and care conditions, a hydrangea bush may refuse to bud and bloom. Another variant of the problem - inflorescences begin to crumble.
The situation can be saved by transplanting to a new, more suitable place and adjusting agricultural technology. In this case, the movement of the flower from one site to another is carried out together with a radical lump, trying not to damage the sensitive roots.
Drying branches
Shoots of tree hydrangea can also undergo drying out and other painful changes. Most often, various types of rot become the cause.
White rot
This fungal infection leads to the fact that the plant begins to die slowly. It begins with infection of the root system due to waterlogging of the soil and the subsequent nutritional deficiency of hydrangea.
You can identify the ailment by a whitish coating in the form of flakes, while the branches can turn black. The proven fungicidal preparations (Fitosporin, Copper Chloride) used in accordance with the instructions help to cure the bush.
Gray rot
Parts of the bush that exposed this disease soften, become watery, become covered with a gray coating. Subsequently, such areas die off and through holes are formed in their place.
The affected parts of hydrangea are cleaned manually, and then treated with suitable fungicides. For garden specimens, it is recommended to use Rovral Flo 255 SC with a frequency of 1 time in 3 weeks. Indoor flower more suitable Chistotsvet or Fundazol.
How to save hydrangea if it has dried
Having discovered that hydrangea leaves turn black and dry, you can try to save it if you act immediately. It is not worth postponing resuscitation and treatment.
Sick hydrangea can be saved
In the garden
In street hydrangea, which has begun to dry out, all non-viable shoots should be removed. In the case of rot, a slice must be done in a healthy area, 1 cm below the affected part of the stem. In this case, the instrument must be disinfected after each manipulation, and the wounds are sprinkled with crushed coal.
After pruning, the bush is sprayed with a suitable preparation.
In a pot
Indoor hydrangea, temporarily kept outdoors in the summer, is brought into the house and also cut off. The remaining parts of the bush are sprayed with HOM or one that corresponds to the identified disease.
Despite the tenderness, hydrangea is a fairly resistant plant. Even if the whole aerial part of the bush has dried, you should not immediately destroy the plant. When the conditions for leaving the bush are restored, sleeping axillary buds may awaken, and after a while it will recover.
