Some gardeners are faced with the problem of why walnuts do not bloom. Its fruits contain a large amount of nutrients and vitamins, are used in cooking, cosmetology and medicine. Observing a number of rules described in the article, you can easily achieve flowering plants.
How does walnut bloom
The tree blooms from April to May. Flowering walnut lasts about 15 days. At the same time it can be both female and male flowers. Women are located on top of the annual escape one by one or several pieces. Male stamens look like pendant earrings, tightly gathered in the leaf axils. Below are a few photos of flowering walnut.
Walnut flowers are small, light greenish tint. Pollinated by wind and pollen of other nut trees within a radius of 1 km. As a result of pollination occurs the formation of fruits.
Fruits are large nuts that have a thick green peel with a thickness of 0.5 - 2.2 mm and a dense bone with several partitions. When the fruits ripen, the peel dries and breaks into 2 parts. There remains a woody shell inside which the edible core itself is enclosed. Ripening falls in August and September. Nuts can be both small and large: it depends on the type and location of the tree. The shape of the fruit is usually round, oval or ovoid.
After planting from a seed, fruiting begins at 8–12 years. Annually from one tree receive from 10 to 300 kg of fruits. On a garden plot, a walnut lives about 200 - 500 years, in the wild - up to 1 thousand years, and sometimes even longer.Important! The older the individual, the more yield it can bring. Tremendous yield is also characteristic of trees located far from others.
Why does not walnut bloom
To grow a nut that can enter fruiting season, it is necessary to properly study the biological characteristics of the flowering plant.
Variety and method of planting
There are fast, medium and late varieties of varieties. To quickly achieve the color of a walnut, it is necessary to know the heredity of the individual from which seeds or cuttings were taken.Tip! A plant grown from seed begins flowering much later, at the age of 8 or 17 years. The plant grafted with cuttings blooms from 1 to 5 years.
It is known that walnut is a dioecious plant, however, its flowering has three forms.
First, the male flower blooms, and after a certain time - female.
First, the female is dissolved, and after it, the male.
The flowering of female and male inflorescences begins simultaneously.
If the female inflorescences did not open by the time the male pollens were released, the tree would not produce fruit.
If the male flowers have only blossomed, and the female flowers have already faded, there will be no harvest.
The plant is self-pollinated and may subsequently produce fruit.
Protandric and protogonic individuals are simply not able to fertilize themselves, they need a pollinator during flowering.
Too much fertilizer
If the tree is actively growing, but the flowering does not occur - this means that the owners fertilize too generously and water it. This contributes to the beginning of enhanced development of the roots, and other processes are slowed down or suspended altogether.
Abundant crown density
If a tree has many rare short young shoots, it is too thick. The flowering of walnut occurs with a moderate density of the crown. So the process of pollination proceeds better, because the wind can freely capture and move pollen.
Unsuitable conditions and diseases
Walnut pollination is not possible with both low and extremely high humidity. Especially if during the bloom there are prolonged cold rains.
The soil for growing is also important. Walnut does not like acidic environments, and the most fruitful trees are found on lime-rich soils.
Among other things, flowering does not occur, because the tree may be sick or be infected with parasites.
What to do if walnut does not bloom
- To speed up fruiting time, inoculate an individual with the “eye” of another walnut, similar in flowering cycle.
- If the walnut tree is not self-fruited, plant a partner for it. It is necessary to select it in such a way that the plants have matched periods of male and female flowers.
- Another option is to use a branch from another plant with pollen in time and shake it above a tree that does not produce fruits. Or lay out drop-down earrings on a sheet of paper and leave to ripen for a day. After that, collect the pollen into a cloth bag and spray it over the plant during its flowering. Such pollen can be stored for 1 year.
- If the concentration of fertilizer in the soil is exceeded, it is necessary to stop feeding and watering until the walnut returns to normal. If this does not help, prune the root system. To do this, move a distance of 1.5 m from the trunk and dig a groove around it in width and depth equal to the shovel.
- With abundant crown density, trim off excess branches.
- When the soil is depleted, it must be dug over using a fork. As fertilizer use 3 - 4 buckets of humus, cover with mulch.
- In a drought, the plant requires a lot of water, but it is not recommended to use more than 100 - 150 liters.
- Nut moths, ticks, white butterflies and apple moths can be eliminated by collecting the parasites and their larvae with their hands. Another option is spraying with specialized solutions. In the period of flowering and fruiting sprinkle walnut is prohibited.
- Diseases such as marsh, bacteriosis and root cancer need to be diagnosed and treated on time.
Diseases: methods of treatment
Fungal infection Leaves form spots of red-brown color. They grow and eventually hit the entire surface, then move on to the fruit.
Fruits and leaves are affected, this leads to their falling off and deformation.
Cancer is the stop of development. Small tubercles appear on the stem and roots. The plant does not receive nutrients and water from the earth, does not bloom, gradually begins to fade.
The reason - a large amount of precipitation
Too plentiful watering or frequent rains, top dressing with products containing nitrogen.
Soil rod penetrating the roots through cracks. Drought.
Prevention - spray the crowns of trees diluted in water with quicklime and copper sulphate in proportions of 1: 1. Repeat 3 times. Remove affected leaves and burn.
Prior to flowering, process the walnut three times with the remedy for Marsonia. The affected parts of the plant are also collected and burned.
Cut off the growing bumps, treat with liquid caustic soda, rinse with water.
Knowledge of the biological characteristics of the plant and the subtleties of caring for it will help to achieve the desired results and see with your own eyes how the walnut blossoms. The start time of flowering mainly depends on the genetic characteristics, growing conditions, soil and crown formation system. All difficulties are most often solvable, so do not rush to chop a non-bearing tree.