Flowering Manchurian walnut
Walnuts are not suitable for cold winters, so experienced gardeners grow frost-resistant Manchurian in the northern regions. Otherwise, it is called Dumbay. The distribution area of this species is in the Far East and the north of China. In the natural environment, trees grow in mixed forests. The cultivated form of Manchurian walnut is cultivated in the Central European part of Russia.
How the Manchurian nut blooms
In this species, the flowers are small, they appear simultaneously with the leaves. The tree is monoecious, that is, on one plant there are:
- female (pistil);
- male (staminate) flowers.
Did you know? There are no mosquitoes near walnut trees: the fact is that the tree contains insect repellent phytoncides.
The appearance of both forms does not always coincide, so it is customary to plant several representatives of the species in one area. The pollination process is due to the wind.
Forms of flowering Manchurian walnut
Pistil flowers - These are small, small-colored brushes, bright pink fluffy petals stand out noticeably against the background of young foliage. Formed at the tips of the shoots.Male (staminate) - similar to catkins: their color changes from pale green to black. These flowers are long, they look picturesque. Appear earlier than women.
What month is the Manchurian nut blooming
So, flowering begins with the budding of buds. At this time - in April and May - male forms appear. Of course, a clear date cannot be called, a lot in the life of a tree depends on the climate, experienced winter and other conditions.
Female forms can bloom later, around the middle of the third month of spring. The period lasts about 7 days. It is in place of the pistil flowers that over time the fruits will be located - 2-7 pieces per brush.
Did you know? Raw ripe Manchurian kernels are used in halva, and from unripe ones they make jam rich in vitamins.
Thus, from April, gardeners can observe:
- the appearance of male forms in the form of earrings;
- changing their color to black;
- blooming of female flowers in small bright clusters.
The shift of the process is possible in the middle and end of May. The nut blooms beautifully, hanging earrings are especially good. Young trees bloom already in the fourth year. Then they can give the first crop.
Manchurian Nut Care
The plant loves water and light. Seedlings need to be placed as they used to be located to the light before planting. Watering is important for a young plant. On hot days, you must especially maintain soil moisture.
The frequency of watering is as follows:
- seedlings - 2-3 times a month;
- plants 2-3 years - twice smaller;
- more mature trees - Once a month during the summer.
It is important not to miss the fact that the nut not only does not like drought, but also waterlogging! Gardeners monitor soil moisture and water according to it.
Important! If a plant is grown from seed, it begins to bloom late - not earlier than from 8 years of age. A tree grafted, maybe from the first year (on average, from 1 to 5).
Manchurian nuts need the following care steps when growing:
- Loosen, mulch and remove weeds. It is recommended to enrich the soil with a depth of 5–9 cm.
- Feed. In June, when the fruits are formed - superphosphate with the addition of wood ash or phosphorus-potassium fertilizers. If necessary, repeat in late July or early August, but not later. 15 g of superphosphate are diluted in 10 l of water.
- Dig around. The process is carried out every year in the spring around the circumference of the crown.
- Shelter for the winter. Used for this burlap. Dry leaves, peat are suitable.
Video: Growing Manchurian Walnut
Why the nut does not bloom, and how to fix it
One of the reasons for the lack of flowering in Manchurian walnut is that the plant gives too much growth. To help the tree in this case, you need to stop all feeding, to limit watering. In extreme cases, prune the roots, leaving only small ones.
If the female flowers have bloomed, and the male flowers are just starting to blossom, cross-pollination with neighboring trees, for example, in the nearest area, helps. It is possible that stamens also developed earlier. It is necessary to select a variety with late flowering, in which both forms of flowers coincide in development time, because pollination is badly affected by low air temperature and high humidity.
Important! Matured and distantly standing trees give greater productivity.
When a plentiful crown forms near a nut, this can adversely affect the flowering process. Need to trim extra branches. The cause may be soil depletion. The earth is fertilized with humus (3-4 buckets) and mulched.
The tree is infected. In time to identify the disease and treat it is imperative. Spraying with solutions against parasites is used, but it can not be carried out if flowering has begun, even if it is very small.
There is a way of self-pollination: you need to take a tree branch on which the pollen has arrived, and shake it on the pollinated plant. Or do this: collect pollen in a bag of cloth and spray.
Significantly affects walnut root cancer. Nutrients do not come from the roots; flowering does not occur. This disease is fought by cutting off tubercles, growths, processing with caustic soda, and washing with water.
The life and health of the Manchurian walnut depends not only on the characteristics of the variety, but also on climatic conditions, as well as on care measures. Choose varieties with a short growing season, later flowering. Water the plant so that the soil is moist, but do not overdo it. Planting several trees contributes to pollination and, accordingly, a good harvest.