Varieties, cultivation and care of densely flowered spirea
Dense-flowered spirea is a makeshift plant that can be a great decorating element of a front garden or garden. Despite the not very great popularity of this bush in Russia, landscape designers consider it an ideal decorative option for planting on any terrain.
Dense-flowered spirea has various names. Today, the plant in question is known as brilliant (with lat. «splendens ") or densiflora (from lat." densiflora "). The British nicknamed her mountain, as well as pink spirea.
Did you know? 02/26/1928 German astronaut K. Raimouth discovered the asteroid 1091, which later became known as "Spiraea" in honor of the genus of the Spiraeus artisan plant.
This artisanal decorative culture has the following botanical description:
- Bush. The plant is characterized by a hemispherical shape. The crown has a dense structure, its diameter is up to 1 m. The stems are thin, have a brick or brown color. The average height of the bush is 80 cm, the maximum reaches 1 m.
- Leaves. Foliage is characterized by an elliptical shape. The lower layer of the bush is covered with light green leaves, and the bulk of the leaves has a saturated green color. In the autumn, they turn orange. The average leaf length is 4–6 cm.
- Flowers. During flowering (in early June), the bush is covered with bright pink flowers, which are collected in a panicle inflorescence. The diameter of the blooming brush is 8–10 cm. The flowers cover the bush quite abundantly, and the duration of their flowering usually lasts up to 60 days.
- Fruit. At the end of summer, the plant is covered with dry multi-seeded leaflets, which have a rounded or slightly elliptical shape. The color of the fruit is black, the size is not more than 10 mm.
Varieties of spirea densely flowered
The genus Spiraea of the family Pink has many varieties. These plants are classified into two groups:
- spring blooming;
- summer blooming.
The first group includes 8 popular varieties that, according to the name, bloom in the spring:
- Gray. A branched bush covered with snow-white flowers and pointed gray-green leaves. This culture blooms in May.
- Argut. Like the previous spirea, this variety also has a spreading crown, but the bush is more densely covered with white inflorescences, and the dark green narrow foliage is notched. The plant is characterized by slow growth.
- Wangutta Dimensional bush with branches spreading and bending to the ground. The shoots are completely covered with snow-white inflorescences and jagged green leaves. In addition to May, the plant may have repeated flowering in August. The people got the name "bride".
- Gorodokovaya. A small meter-long bush is covered with oval leaves with a town edge. The bush blooms with white and yellow flowers, gathered in wide brushes.
- Dubravkolistnaya. A tall erect bush plant with branches curving downward. The culture has white flowers growing around the perimeter of the shoots. Foliage has large teeth, as well as green or bluish-green color.
- Nipponskaya. This Japanese shrub has a semicircular crown shape, with densely growing green leaves. Abundantly blooming inflorescences are distinguished by flowers of white-yellow or white-green color.
- Medium. A medium-sized bush with green leaves and fluffy snow-white flowers.
- Thunberg. A small branchy shrub densely covered with white flowers and small leaves.Foliage in the autumn is colored in orange.
The second group includes varieties of spirea, the flowering season of which begins in the summer:
- Japanese The plant is covered with green oblong leaves and flowers of white or pink color. It has many decorative forms, for example, Little Princesses, Shirobana, Macrofilla, Candlelight, Goldflame, Golden Princesses, Gold Mound.
- White. A medium-sized bush with pointed green leaves and white fluffy flowers, collected in inflorescences, which have the shape of a pyramid.
- Birch-leaved. A low bush, on which there are light green leaves, similar to birch. A little convex brush inflorescences consist of white and pink flowers.
- Billard. This hybrid species of spirea has spreading branches covered with elongated green leaves, and at the ends of the shoots there are bright pink clusters of flowers.
- Bumalda. Low bushes with dark green leaves. Inflorescences of light or bright pink flowers are collected in inflorescences of a heterogeneous shape. This variety is very similar to Japanese spirea.
- Douglas. This is an American variety of spirea, characterized by straight shoots, on the tops of which there are bright pink or lilac fluffy flowers that look like lilac brushes.
- Loosestrife. A two-meter bush consisting of straight shoots of brick color, elongated dark green leaves. At the ends of the stems are pink flowers. The shape of the inflorescences of this plant resembles a blooming sage, but large.
A variety of densely flowered spirea is part of the second group of plants of the genus Spirea. This culture has several varieties:
- Big Bang. The plant usually does not reach one meter and has a spherical shape. Leaves are distinguished by a delicate golden color. The adult bush is covered with bronze foliage, which brightens in the autumn. Large pink-lilac inflorescences bloom from the second half of June to the end of August.
- Mountain spirea. The bush is low, has dark green foliage with a blue tint. Shoots are densely covered with pink inflorescences-panicles.
- Monvis. The maximum height of the bush is 0.8 m. Green leaves repaint in a saturated orange color in autumn. The shrub is crowned with small pink flowers collected in dense panicle inflorescences.
Landing and care
The plant is considered quite unpretentious both in the choice of a place for planting, and in terms of agricultural technology. But landscape designers and gardeners recommend adhering to some rules in planting and care, so that the plant is healthy, strong and for as long as possible delight others with its flowering appearance.
Landing and soil preparation
This decorative culture can grow in different areas, even on stony soil. The best option for planting a seedling is turf or leaf soil with the addition of peat and sand in a ratio of 2: 1: 1. The place should be well-lit or semi-shady, with moderate humidity.
Important! To make the bush more lush and overall, you should choose rich in humus and well-drained land.
There are two options for planting this shrub:
- as a hedge;
- in groups.
For the first option, it is necessary to prepare pits, the distance between which in a row will be 40–50 cm, in the row-spacing the distance is 30–40 cm. A group planting is characterized by a distance between planting pits of 50–70 cm. The size of the pit for planting depends on the root system of the plant (30% more roots). Depth - 40-50 cm. Planting pits should be with fertilizers introduced into them. Broken bricks, as well as sand, are well suited as drainage.
Fertilizer and fertilizing
This ornamental plant prefers mulching (in near-stem circles) in the form of peat mixed with sawdust and nutshell (or husk seeds). The mulch layer should not be less than 0.6 m and not exceed the mark of 0.8 m.This procedure helps to preserve moisture and loose soil for a long time, reducing the need for watering.
It is recommended to feed the bush by applying fertilizers saturated with nitrogen, phosphorus and other useful minerals. Fertilize the soil in early spring after the completion of pruning.
The fertilizer mixture is prepared in this way:
- water is mixed with slurry (1 bucket of manure per 5 buckets of water);
- superphosphate is added to the mixture (7-10 g superphosphate is added to 1 bucket of liquid).
Watering and pruning
Constant watering is necessary for very young plants, as well as bushes growing in the dry period. The first watering is carried out immediately after planting in large quantities. Further watering should be moderate. Reducing watering also depends on the proper mulching of the plant.
As a summer-flowering variety of spirea, densiflora requires annual pruning in early spring, at the time of awakening of the plant. Shoots should be shortened to developed buds, and zero - cut completely. This procedure promotes the growth of stronger shoots.
After 4-5 years of plant life, it is recommended to trim the top layer of shoots (30 cm from the ground). From time to time, shrubs need to be shortened by a stump. In the summer, faded inflorescences are cut off so that the plant does not waste energy on the formation of multi-seeded leaflets. Like all summer-flowering species of the genus Spirea, densiflora is not durable, unlike spring-flowering relatives. Replacing wilted or weakened bushes with young ones is done in 15–18 years.
Important! If you leave the old branches uncircumcised, then there is a high probability that over time they will stretch to the ground and dry out.
The considered artisanal plant is considered winter hardy (up to -30 ° C). In the case of autumn planting, it is recommended to shelter the bush for the winter. It is noticed that last year's shoots are especially prone to frostbite.For a comfortable wintering, gardeners usually bend shoots to the ground and pin them. Cover with a specialized breathable material on top or cover with a layer (up to 15 cm) of dry foliage.
The use of densiflora
Dense-flowered spirea is not a favorite among Russians, but due to its resistance to bad weather and unpretentiousness, it can be an excellent option for landscaping gardens. A group planting of the considered artisan plants can decorate the territory of parks, flower beds, and also cope well with the creation of alpine slides, small landscape compositions.
Did you know? The Indian tribes, having settled in the territory of America, actively used this plant as a gas station for smoking pipes, as well as a cure for various diseases.