This unpretentious, easily breeding and luxuriously flowering plant is able to decorate any garden. At the same time, many people are attracted by the fact that doing such work as planting and leaving will not cause any difficulties even for novice gardeners.
Spiraea, easily adapted to the Russian climate, is grown in many regions of the Russian Federation. In the genus Spirea includes about 90 species of this plant. And thanks to the work of breeders, the emergence of new interesting varieties is constantly observed.
The most popular among landscape designers is Japanese spiraea, in the scientific world called Spiraea japonica and arrived in Russia from China and Japan. She is loved by many gardeners for long and luxurious flowering.
An interesting feature is its elliptical leaves. In the spring, when they dissolve, they become red-brownish in color, with the arrival of summer they turn green, in the fall they begin to acquire a reddish tint again. But today, breeders have already received varieties that do not change the color of their foliage from spring to autumn.
Japanese spirea exceeds the duration of flowering of all representatives of a kind. Beginning in mid-June, there are pleasantly smelling hats of colors on it, representing a spectacular spectacle that can be admired until autumn.
Japanese spirea, resistant to many adverse conditions, has been successfully grown in almost all regions of our country, from the southern borders to the Arctic. It can grow even without the presence of fertile soil, feeding, watering and shelter for the winter.
Spiraea Japanese watered, as a rule, only the first year of her life. It is also optional and pruning. The height of the plant bushes depends on the variety and varies in the range of 20-150 cm. The crown of this type of spirea is hemispherical without “bare legs”, sometimes thick, and sometimes a little “disheveled”.
Before planting, the root system of seedlings must be put in order. For what you need, using a garden pruner, shorten too overgrown roots and remove damaged ones. The branches also need to be corrected, especially if the seedling has dried roots. The above-ground part of the plant is shortened by a third.
Saplings with a closed root system, after removal from the container, pour plenty of water. In the presence of a strongly dried lump of earth, it is kept in a container with water for some time.
This procedure is usually done at the beginning of spring, before the buds start to bloom, or in the fall. Although Japanese spirea is a hardy plant, it is better if it grows on a sunny plot and in fertile (leafy or soddy) soil with a distance between seedlings of 50 cm or more.
Plant this ornamental shrub preferably on an overcast or rainy day. It is recommended to put some stones or broken bricks in the seedling hole, and then pour a layer of garden soil, adding river sand mixed with peat into it. You need to adhere to such proportions:
- soil - two parts;
- peat - one part;
- sand is one part.
Spirea roots after placing them in the prepared hole are covered with earth, which is compacted around the seedling. It is also recommended to soil the peat with a mulch, having previously watered it well with water.
Although the Japanese spiraea belongs to the undemanding plants, but with proper care you can achieve more vigorous growth. In this case, it is necessary to periodically loosen the soil and carry out its weeding. Then spirea will delight you with the enchanting beauty of its lush bloom. She tolerates a haircut, turning it into an unusual blooming hedge.
In the Japanese spirea, the root system is located near the surface of the earth, so the plant feels unwell in drought, and at this time it needs to provide plenty of moisture by pouring two or three buckets of water every 14 days under its bush. After pruning, it is also recommended to water the spirea bush for several weeks.
It is necessary annually in the soil, in the place where the Japanese spirea is planted, to embed the mulch, which should include peat, as well as compost or crushed bark. It is also recommended to feed the plant immediately after it is cut using mineral fertilizers.
Pruning plants produced in order to, firstly, to give the bush shape, and, secondly, to remove ugly, dried or aging shoots, which are shortened to the locations of viable large buds.
Rejuvenating Japanese spiraea, do not be afraid to remove excess.
With the help of bold high-quality pruning, you can only increase the number of new shoots. Without such a procedure, the old branches of the bush will incline it down, and the tip will begin to shrink.
Some experienced gardeners advise every four years to cut a bush so that there is only 30 centimeters of its height from the ground.
With the arrival of autumn before the end of the leaf fall, a three or four year old spiraeum needs to be dug, the roots washed and the plant divided into two or three shrubs. Then you need to make a hole in the ground and fill in the middle a small mound on which to place one of the resulting bushes, pre-leveling its roots. Sprinkle the hole with the seedling in it and pour water on it.
To do this, use the annual shoots, cut in July, which leave five or six upper leaves, removing all the rest. After that, the cuttings are kept for 10-14 hours in a solution of Epin, which is an activator of the protective functions of plants, and treated with Kornein, a biostimulating drug that irritates the plant's covering tissues and stimulates the development of living cells in wounded places. After that, such well-prepared cuttings for further rooting are placed in a moistened sandy substrate.
The cuttings are covered with foil and sprinkled with water three times a day. With the onset of autumn and after the appearance of the roots, the cuttings are planted close to each other in the soil, covering the fallen leaves. Before the arrival of spring, the cuttings are covered with boxes, and they are planted in a permanent place in the spring, when shoots appear on them.
Sowing seeds is best done in the spring in a container filled with a mixture of peat and earth. Emerging seedlings are planted at the beginning of summer in the garden, by pinching the tip of their main root, which is done to ensure the best development of the roots of the plant. Japanese spirea blooms, grown with the use of seeds, only after three (and sometimes four) years.
Decorative varieties and their features
Thanks to the achievements of breeders today known more than fifty varieties of Japanese spirea. At the same time, planting and care for each of them have no significant differences. And they are all adorable in their own way. Below are just some of the most popular varieties.
- "Goldflame" - a plant with small pink (sometimes with a reddish tinge) flowers and changing foliage. In the spring, the leaves are orange, then turn yellow, then green with yellow, and finally, in the fall, they turn orange with the addition of the color of copper.
- "Little Princesses" - a small shrub, having a height of 60 centimeters or less, with green leaves of a dark shade. Flowers, whose diameter can reach up to four centimeters, can be red and pink.
- "Golden Princess" - a type of Japanese spirea up to 100 centimeters. It has red-pink blossoms and yellow foliage.
- "Shirobana" - a bush not exceeding 60 centimeters in height with a wide crown, sometimes reaching a diameter of 1.2 meters. Flowers (white or pink) appear at the very end of July.
- "Macrofill" - an interesting plant with wrinkled leaves of purple and red hue and umbrella pale pink inflorescences.
- "Crisp" - a shrub not more than 50 centimeters in height with small pink flowers of lilac shade, collected in the form of umbrella inflorescences. It blooms for about two months, starting in mid-summer.