The decorative hydrangea flower is classified as a capricious crop. Not everyone succeeds in getting lush bright buds. Hydrangea usually does not bloom for several reasons: improper care, poorly tolerated winter, insufficient soil acidity. There are other factors that affect the setting of flower stalks.
Features of hydrangea flowering
This bush culture blooms annually with proper care. The formation of buds lasts the entire warm period of the year. In Russia, deciduous varieties of hydrangeas are grown with paniculate, spherical or corymbose inflorescences.
Mostly the flowers of the shrub are white
The color depends on the level of acid in the soil, for example, if pink hydrangea does not bloom, a small amount of alkali is added to the soil.
In neutral in composition soils, the buds of the culture will be beige or cream
If blue hydrangea does not bloom, the soil lacks aluminum, which the plant can easily absorb.
The acidity of the soil is increased to turn the hydrangea blue
In order for the culture to release buds, they grow lush and large, a number of rules should be followed when rooting a seedling. The main thing is that the planting material is of high quality, varietal, obtained from a healthy mother bush.
Other conditions for flowering shrubs:
- the correct landing site;
- regular watering;
- making dressings;
- frost protection.
With competent and high-quality care, you can accelerate the growth of the shrub, stimulate the formation of buds.
When should hydrangea bloom
The culture blooms in early June. The budding period lasts until the onset of the first cold weather, this is the beginning or middle of September. If the large-leaved hydrangea does not bloom during the specified period, then the technology of its cultivation has been violated.
From frequent feeding, the foliage of the culture grows, but it will not release the buds
Poor and irregular watering also reduces the chances of the hydrangea blooming in summer.
Why garden hydrangeas don't bloom
In the garden, varietal hydrangeas often do not bloom after transplanting in the next season. These capricious plants should successfully endure the winter. You cannot wait for the air temperature to drop to 0 ᵒС, in this case the flower buds freeze, the buds will not form in the next season.
Immediately after shedding, the hydrangea is cut and wrapped for the winter.
Flowers growing in tubs or pots in the garden are transferred to the basement; indoors, the hydrangea can easily withstand the winter. This is the main condition for abundant budding next year.
Important! New purchased plants may develop root growth abnormalities. This defect is difficult to trace. It affects the growth and setting of buds, the plant does not bloom.
Hydrangeas are also pruned in the spring.
If you do not get rid of old, dry, damaged stems, the plant will weaken, and it will not have the strength to form buds
Well-developed, green shoots of the previous season cannot be cut off. It is at their ends that the buds are laid.
An excess of fertilizers in the garden soil leads to the growth of green mass, and the formation of peduncles is suspended. For the same reason, nitrogen fertilizers are not recommended in the soil at the end of summer and autumn. By winter, all biological processes of the plant should stop; in the cold period, the flower enters a state of dormancy.
For different types of garden hydrangea, there are objective reasons for the lack of buds. Some of these shrubs are hardy, but other factors also affect their growth.
Panicle hydrangea does not bloom well due to the poor composition of the soil.
This culture requires soil, half mixed with clay, its acidity should be minimal.
The species is resistant to frost, so the cold does not affect the setting of buds. And irregular, poor feeding leads to the fact that the flowers become small and pale.
Treelike hydrangea does not bloom in the garden due to lack of moisture. In the summer, this should be regular, abundant watering. The culture tolerates the cold well, but it needs to be wrapped up for the winter, since the buds of the plant die with the first frost.
Regular feeding is necessary for a tree culture. In early spring, fertilizers are applied to form green mass, at the end of May - to stimulate the formation of buds.
If the tree hydrangea is not fed and watered regularly, you will get a large green shrub that does not bloom.
Hydrangea serrata does not bloom in the garden due to the weak acidity of the soil. This factor is the most important for the formation of buds. Also, this culture does not tolerate stagnation of water in the ground. Loosening the soil regularly will help prevent root rot. In the northern regions of Russia, the culture does not bloom, since it does not tolerate the cold at all.
The species is recommended to be planted in the southern and central parts of the country.
Climbing hydrangea does not bloom in cold regions. This species is intended for cultivation in the south.
You can not plant a flower in the sun, he prefers partial shade
Calcareous soil should be avoided; the culture prefers acidic, loose soil. Spring pruning is also important for her, they stimulate the growth of shoots on which flower stalks are formed.
The petiolate hydrangea does not bloom if planted in the shade or against the wall of the house, the culture develops well in full sunlight.
The first flowers appear on this plant 5 years after planting.
To stimulate peduncles, the level of soil acidity is increased to 4-6.5 units.
How to make a hydrangea bloom
If the large-leaved (broadleaf) garden hydrangea does not bloom, this is a reaction to improper care or planting. The situation can be corrected if the plant is provided with all the necessary conditions for growth.
For hydrangea, autumn and spring pruning is important. As soon as the plant has faded, preparations for winter begin. At this stage, it is important to properly shorten the shoots in order to stimulate the growth of new ones next spring.
First, cut off the remnants of dried buds
Then the wilted or damaged stems are removed. They also shorten the shoots growing inside the crown, thickening it. Strong young stems, at the ends of which young buds form in autumn, are not pruned.
In the spring, they carry out sanitary pruning of the plant, remove dry and broken branches. It is recommended to cut the panicle and tree hydrangea in the spring, before flowering. The rest of the species of this crop tolerate autumn pruning better.
Preparing for winter
In autumn, dried flower stalks and lower leaves are removed from hydrangeas, the upper ones must be left. Then potash and phosphorus fertilizers are applied at the root. The plant is thoroughly watered, the soil is loosened.
In central Russia, all types of hydrangeas need shelter for the winter. With the arrival of the first cold weather, the culture may die.
Low shrubs up to 1 m are covered with peat, covered with a film on top, pressing the covering material with boards or staples along the edges.
Tall bushes are tied with a rope and tilted to the ground. Planks are placed under the crown, into which nails are stuffed. A hydrangea is tied to them by the ends of the shoots. Sawdust or dry leaves are poured on top. You can fix the structure with tar paper.
In regions with cold winters, hydrangea is covered more thoroughly. First, the bush is tied with a rope, the shoots are bent to the ground, securing them with metal brackets. The central part of the shrub is covered with peat, and the shoots are covered with spruce.
From above, the structure is covered with a durable covering material, fixed with bricks or boards along the edges
Old shrubs with woody stems do not twist. They are wrapped with covering material, tied with a rope. Metal semicircular brackets are placed on top of the structure, dry foliage is poured inside the structure. From above, the hydrangea is covered with sheets of roofing material.
In the southern regions, the hydrangea is simply huddled in the fall. Young plants up to 2 years old are carefully covered. Shrubs from 3 years old and older are more resistant to frost.
The plant is watered only with settled water at room temperature. Do it regularly. One shrub requires 10 or more liters of water, depending on the size of the rhizome.
In summer, in the heat, the bush is watered every 3 days. If the summer is cool, one watering per week is sufficient.
Water is poured only from a watering can with a spray, a hose will not work for these purposes, you cannot expose the roots of the plant
The composition of the soil mainly affects the flowering and color of the crop. Especially if the hydrangea has not bloomed for the second year already, it is important to determine the acidity of the soil and, if necessary, increase it. For the setting of buds and abundant flowering, slightly acidic and medium acidic soils (4-6.5 pH) are required.
It is necessary to acidify the soil annually, since in the process of growth hydrangea draws out nutrients, and the soil becomes depleted. In the spring, solutions of saltpeter, ferrous sulfate are introduced into it. A slightly acidic vinegar solution will also help raise the acidity of the soil. For the same purpose, citric acid is also used (2 tsp per bucket of water).
If the soil composition is optimal, the plant will release blue buds, when the acidity is insufficient, the flowers will be pink
Hydrangea does not bloom due to lack of nutrients. Top dressing is done according to the schedule for flowering crops:
- In early spring, before the formation of peduncles, complex fertilizing with nitrogen, phosphorus, potassium, magnesium, zinc is applied every week.
- Between mineral dressings, the plant is mulched or shed once a week with a solution of settled plant waste.
- During the laying of buds and flowering, potash fertilizers are applied once every 10 days. Nitrogen is not needed during this period.
- As soon as the hydrangea fades, it is fed with phosphorus in the fall. This will strengthen the plant and increase the winter hardiness of the buds.
At the same time, a solution of cow dung is used as a nutrient irrigation (a liter can for a bucket of water)
If the hydrangea does not bloom, the soil is regularly moistened, loosened, and its qualitative composition is improved.
Hydrangea care tips
If the hydrangea does not bloom, in addition to basic care, use the advice of experienced florists. Sometimes a little trick can make a capricious culture bloom as early as early May.
Secrets of abundant flowering:
- If the large-leaved hydrangea does not bloom, you do not need to trim it in the fall. Peduncles are formed at the ends of last year's shoots.
- In regions with cold winters, dried buds are not cut in the fall; they provide additional protection to the forming buds. You can clear the shrub from dry vegetation in the spring.
- A good feed for hydrangeas that does not bloom is coffee grounds. It is mixed with the top layer of earth near the trunk circle.
- To get blue buds, 20 g of aluminum alum or metal filings are added to 1 kg of soil near the shrub.
- If the hydrangea, which hibernates in tubs in the basement, is occasionally watered, in February it will sprout new shoots, it's time to move the flower to a brighter place.
- After watering, it is better to mulch the near-trunk circle, and not loosen the ground.
When digging the soil, there is a possibility of exposing the roots, but this should not be allowed
Hydrangea is a thermophilic and photophilous culture. If it doesn't bloom, the plant may not have enough light and warmth.
Hydrangea does not bloom in the garden if the climate or soil composition is not suitable for it. These are the main factors affecting bud formation. If there is enough heat and light for the plant, the acidity of the soil is checked. It should be tall. Regularly watering and feeding this culture, providing it with a warm winter, in the spring they get a beautiful ornamental plant, strewn with large, lush buds.