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Culture in natural conditions grows in mountainous areas and forests. Mountain ash is found and blooms in spring everywhere: both in countries with harsh climatic conditions, and in the middle lane in the northern hemisphere.
Does mountain ash bloom
There are more than 80-100 species of this tree. In central Russia, mountain ash most often blooms in spring.
You can catch the period of opening the buds in varieties such as Titan, Businka, Ogonyok. All representatives of the Rosaceae family have their own distinctive characteristics, features of care and use.
What is the inflorescence of rowan
Rowan flowers are very numerous, five-membered, collected as a shield, up to 10 cm in diameter.
Rowan inflorescence is a modified panicle, with shortened internodes of the main axis. The internodes of the lateral axes in the complex scutellum are highly developed. The endings reach the level of the apical flower.
The receptacle has a narrow-like shape in the form of a calyx with five wide-angle ciliated sepals. Corolla of white color, 0.8-1.5 cm in diameter, only five petals and numerous stamens. The pistil at the inflorescence of this culture is one, three columns, the ovary is located at the bottom.
When rowan blossoms
Rowan in bloom in spring is very beautiful: white shade of shaggy inflorescences cover the tree from late May or early June.
The buds have an unpleasant aroma, similar to the fishy one, and in some varieties it is bitter-almond. The flowering time is 1-2 weeks. The tree feels as comfortable as possible in hot weather, therefore, in the southern and central regions, you can see flowers on mountain ash in spring in early May. In northern latitudes, this process is postponed to early or mid-June.
How mountain ash blooms
Flowering times vary depending on the varietal characteristics of the crop. Most often in the gardens in the spring you can see the common and chokeberry.
Blooming rowan ordinary
The tree is often found in the forests of Europe, the Caucasus, North Africa and Asia. Rowan does not tolerate swampy and saline soils poorly.
Of all the flowers that appear at the end of May, the fruits are formed by about one third. As they develop and mature, some more of them fall off.
Chokeberry flowers
It is possible to see this shrub in the east of North America, where it grows naturally. The chokeberry is found in the temperate climate of the world: it is grown in Russia, Kazakhstan, the Volga regions.
Photos of flowering mountain ash and black chokeberry allow you to assess the degree of similarity. This variety has bisexual flowers, regular, medium-sized. The corolla of the buds is white or pinkish with 15-20 stamens. Flowers are collected in scutes, reaching a diameter of 6 cm. The first buds appear in May-June, fall off after 2-3 weeks.
Why mountain ash does not bloom
Despite the ubiquity and unpretentiousness of the culture, often after planting, the owners cannot wait for the first fruits. The reasons why mountain ash does not bloom are numerous.
Improper care
Rowan in bloom in spring suggests a rich harvest, but the absence of panicles with buds on the tree is also possible. Violation of the rules of agricultural technology is one of the reasons.
Cultivation of a crop involves regular watering and loosening of the soil, introducing nutrients into the soil and pruning. Moistening the earth is necessary in the absence of precipitation at the rate of 2-3 buckets per bush. Shoot pruning is carried out before the buds awaken, allowing the plant to receive sufficient sunlight and has a positive effect on flowering.
In the spring, before flowering, it is important to inspect the trunk and shoots for damage, to feed the seedling. Damaged and dry branches are removed, the integrity of the bark on the trunk is checked.
Flowers do not appear in the spring at rowan, if it is incorrectly planted. It is recommended to place the seedling on the borders of the garden so that it does not obscure other plantings. Despite the unpretentiousness of the plant, it feels well on fertile: loamy soils. Wetlands and lowlands are not the best options for growing crops.
Adverse climatic factors
Pollination of rowan flowers with further formation of the ovary is possible not only with proper care, but also with the predominance of certain climatic factors. The tree can withstand frosts down to -50 ° C, thrives in open spaces. Despite the shade tolerance, the culture blooms and bears fruit more abundantly, if you provide it with access to the sun's rays.
The tree grows slowly when grown in dry, hot climates without sufficient moisture.
Lack of pollinators
Most mountain ash species are self-fertile. To provide trees with cross-pollination, gardeners are recommended to grow at least 2-3 varieties on their site. They are placed close to each other.
If there are no pollinators, then in order to capture a photo of how the mountain ash is blooming, you can graft a stalk to the tree. After the procedure, it is possible to obtain a rich harvest.
Diseases and pests
Among the fungal infections that can harm a spring blooming crop is powdery mildew. The disease spreads over the fruits and leaves in the form of a white bloom that can be easily removed with the fingers.
The appearance of convex spots on the leaves of a rusty shade is a symptom of a fungal disease of rust. It quickly spreads throughout the plant, feeding on important trace elements and tree sap. Without treatment of a spring-blooming seedling with Bordeaux liquid, it quickly dies.
In an unfavorable climate and violation of the rules of agricultural technology, the plant is affected by brown spot. The fungus lives on leaf blades, which is manifested by dark circles. Brown spot multiplies rapidly and progresses actively during the heavy rainy season.
With the development of gray spotting, the leaves on the branches gradually turn yellow and fall off, which leads to the premature death of the plant. The first symptoms of the disease are the appearance of small brown spots of an angular shape on the mountain ash. As the gray spot progresses in the habitat of the fungus, the leaf cracks and falls to the ground.
Among the viral diseases affecting a flowering seedling in spring is the ring mosaic. It appears as yellow spots with green circles merging into one, creating a mosaic pattern.As the virus spreads further, the leaves curl and fall off. There are no effective measures against the disease; they prefer to destroy the tree.
Moths are capable of parasitizing on culture. These are moths, whose caterpillars harm flowers and leaves. For prophylaxis, the tree is treated in spring with Karbofos or Cyanox.
The spider moth lays eggs on young shoots. Caterpillars, yellow with a brown head, weave cobwebs on leaf plates, damaging them. To destroy the spider moth, the culture blooming in spring is sprayed with a 0.2% chlorophos solution, the affected shoots are cut off and burned, the soil is dug up around the trunk.
After wintering in cracks in the bark, the weevil beetle feeds on rowan buds, and then lays eggs in the bud. The hatched larva damages the flowers. To combat the weevil beetle, rowan is sprayed with insecticides in the spring.
Fruit sawfly damages rowan blossoming in spring. The insect lays eggs in flower buds, which leads to their premature death. To destroy the pest, it is recommended to treat it with a mustard solution (10 g of powder is diluted in water in a ratio of 1: 5).
What to do if rowan does not bloom
In the absence of fruit on the tree, it is necessary to study the varietal characteristics of the planted plant. Some varieties bloom in the spring at the 4th year of planting, but more often the first berries can be seen at the 5-7th year of the tree's life.
It is imperative to provide the selected variety with pollinators, it is important to make sure that the seedling is planted in compliance with the basic rules of agricultural technology, and regularly receives all the necessary nutrients.
In case of unsuccessful tree placement or poor soil fertility, it is recommended to transplant rowan. If it is impossible to perform this procedure, the soil is fertilized with dressings and mulched.
Every spring, a flowering crop is checked for pests and preventively treated for diseases.
Conclusion
Rowan blooms very beautifully in spring, allowing you to give your site a decorative look. The tree is planted not only to decorate the garden, but also to produce fruits known for their beneficial properties. Rowan is an unpretentious plant, but it may not bloom due to climatic conditions, violations of agricultural practices and attacks of pests and diseases.
