In the field of decorative design of land plots, Japanese spirea Froebelii is very popular. Experienced gardeners note that this variety combines an attractive appearance, unpretentiousness in care and practicality. Today, the plant can be found both on the territory of private plots, and in city parks, squares.
The ornamental shrub has compact dimensions and a neat appearance. During flowering, it is covered with lush inflorescences of bright raspberry color. A distinctive feature of the variety is a rich purple hue of young foliage upon opening. Over time, by the beginning of summer, the color changes to dark green.
The flowering period falls in mid-June. At this time, all Japanese spirea are covered with corymbose inflorescences. Under favorable weather conditions, flowers will delight you with beauty until the middle of the first autumn month. In autumn, the leaves of the bush are painted in a bronze-scarlet shade, which reveals its decorativeness with renewed vigor.
In height, the plant reaches about 120 centimeters. The width of the bush has similar dimensions. The shape is sphere-shaped. To maintain an attractive appearance, annual trimming is recommended.
Rules of landing and care
If you purchase ready-made plant sprouts in special nurseries, it is recommended to opt for shrubs in containers. In this case, there is a greater chance that the flower will take root in a new area.
Carefully inspect the seedling. If buds are present on it, it is better to remove them so that the shrub retains strength and spends them on adaptation.
Let's take a closer look at the planting and care procedure.
Site preparation and seedlings
According to experts, Japanese spirea is unpretentious and grows remarkably in almost any environment (lack of sunlight, low soil fertility, etc.). Even if the direct sun falls on the shrub for about 4 hours a day, the plant will remain attractive and will delight in its lush color. Despite this, it is recommended to choose a lighted area on which the shrub will be as comfortable as possible.
It is not recommended to plant spirea on clay soils and in locations with low relief due to the fact that the flower does not tolerate moisture stagnation.
Be sure to place a drainage layer at the bottom of the pit for planting. As a material, use pieces of brick or crushed stone. Some gardeners place shrubs on embankments and artificially designed hills.
Plants with an open root system are best planted in early spring (before the buds open) or after the end of the fall season in autumn. Bushes that grow in containers can be replanted at any time during their active growing season.
The depth at the pit should be 40 centimeters. It is recommended to prepare it for at least 7-8 days. A few hours before planting, the seedlings are kept in a solution that stimulates root growth. Shrubs with a closed root system are abundantly watered with the same composition, and after that they are planted in open ground.
The thickness of the drainage layer should be at least 10 centimeters. After the pit is filled with soil mixture. The prepared soil is half composed of land, as well as peat and sand (in equal parts). To prepare such a composition is very simple at home.
It is also necessary to thoroughly moisten the soil. When planting, the shrub should be deepened into the ground so that the root neck of the plant is several centimeters above the top layer of the earth. At the end of the work, the soil near the shrub is carefully tamped and watered from a watering can.
Fertilizer and watering
It is recommended to use mineral compounds as top dressing. At the start of the growing season, experienced gardeners use nitrogen fertilizers. They give excellent results and safely affect the plant. When the buds start laying, phosphorus-potassium top dressing is introduced.
At the end of summer or in the first months of autumn, if necessary, spraying is carried out. The leaves are treated with a solution of potassium monophosphate. It will help the flower survive the winter.
Spirea "Frobely" does not need to be thoroughly moistened, however, in the first year after planting, it requires a more careful attitude. Watering frequency should be adjusted depending on weather conditions.
In the hot season, plants need moisture more than usual.
You should also draw a layer of mulch around the plant.
This representative of the flora needs a procedure such as annual pruning. This will help maintain high decorative qualities of the plant. Sanitary pruning is performed even before the leaves bloom, at a time when the shrub begins to wake up after wintering. During operation, gardeners remove weakened and thin branches.
Last year’s growth is cut to the level of developed kidneys. Work on adult plants is carried out more radically: the branches are removed 40 centimeters from the soil surface. Forming at 4–5 years of age actively influences the process of plant growth, and also has a beneficial effect on the formation of the peduncle.
Withered flowers should be regularly removed so that the plant does not waste strength on them. This is necessary for the full preparation of the bush in the winter.
Spirea has excellent resistance to frost. Due to this feature, the shrub can be grown within the fourth USDA zone. Froebelii can withstand up to 35 degrees Celsius below zero.
Experts say that only young plants that have been planted in the open ground shortly before the cold snap should be cooked in the winter.
To protect the root system, plants form a new layer of mulch from dry compost and then cover with geotextile. Work is carried out at the end of October or at the beginning of next month.
Shrubs are preferably fed. Nutrients will give the flower the strength necessary to survive the frost. If strong winds are raging in the region, it is necessary to build a special support for young shrubs.
There are several options to propagate the plant. The seed method is not used for the reason that hybrid varieties are not able to preserve the properties of mother plants, as a result of which seedlings completely lose their decorative qualities.
Gardeners recommend choosing one of the following options:
- cuttings (green);
- cuttings (winter);
Propagation by green cuttings is carried out in the summer, when the flowering season begins. Gardeners choose a strong shoot and cut it into cuttings. Each of them must have a minimum of 4 leaves. The upper section is made straight, and the lower (under the kidney) - inclined. To reduce evaporation, the leaves on the cuttings are cut in half, and two leaves from the bottom are removed.
Further, for about 4 hours, the cuttings are kept in a solution that stimulates growth, or in standing water. After the lower media, they are treated with Kornevin powder and planted in vermiculite or wet sand. Deepen the stalk no more than 3 centimeters.
Cuttings should be transplanted into a separate container at an angle of about 40 degrees and covered with a dense film. Tanks are left in a dark place. Spray the cuttings every day, using a small spray.
This technique is reliable and simple. It allows you to get young plants with little or no effort. You should select several shoots from the bottom of the shrub and lay them in the furrows near the mother plant. Branches need to be pinned to the ground in several places.
Next, shoots should be sprinkled with earth, leaving the top on the surface. She is tied to a peg. In the place where the shoot adjoins the ground, the soil should be constantly moistened. It is recommended to apply a layer of mulch from grass or peat. Separate a new plant from the mother bush should be a year later, with the onset of next spring.
This is the easiest way to propagate the plant. The roots of the bush should be cleaned of lumps of earth and divided into several parts. On each new plant should leave a few strong and strong shoots, at least 2 or 3. Carry out the procedure with a knife or pruner. Cut points should be treated with carbon powder or brilliant green.
Cuttings in winter
Cuttings are cut from September to October. Leaves are removed. Cuttings are left in the water for 2-3 hours and then planted in moist soil, deepening by 5-6 centimeters.
The planting site is covered with mulch from fallen leaves. As a rule, rooting falls in the spring, with the arrival of heat.
For even more useful and important information about the Frobeli spirae, see the next video.