External appearance and bio features
Plants of this genus can grow like small (before 15 cm), unreasonably and stale (before 2.5 m). The branches of the bush are erect or creeping. The paint varies across the light before dark brown. Roots are shallow, fibrous. During the flowering period spiraea is covered with numerous small flowers in the inflorescences of various forms. The color of the petals is through the snow-white in front of the crimson. Inflorescences spiraea can take a kind of consistent with the entire shoot, for no reason and for its upper part or for the end of the branch. The plant will be seeded with seeds, cuttings, bush division, layers.
Spirea does not need pruning. It is carried out only for decorative purposes, in order to give the bushes a more neat appearance. Crown plants can exist curdled and dense or a little"rarefied", but with all this always presentable looks. The branches bloom in front of the earth, hence the unattractive effect of"bare feet."
The bushes are hardy, adapt perfectly to different climatic conditions, hence it is allowed not only to grow in the south or in the middle band, but also in the northern regions. If spiraea frosts in severe frosts, then the rest is restored and blossoms in the same year. For the usual development of the plant quite a few hours a day of direct sun, fertilizing, good land. For winter it is allowed not to hide Spiraea blossoms for shoots that grow in the course of the same age, therefore pruning does not damage its appearance
A variety of shrubs of the genus spiraea Spirea Bumwald . This is a hybrid visibility. Plants achieve an elevation of 0.5-0.8 m, have erect shoots and very beautiful leaves - in summer greenish, and in the autumn they are yellowish, reddish with a purple color. Flowers are pink.
Between the spiers of Bumald, the most common quality is Goldfleym. The shrub achieves an elevation of 0.8 m. If the plant is planted for the sun, then its leaves change their color depending on the season - through the affectionate golden-orange in front of the copper-red. Leaves of bushes planted in the shade, Wildwood spire . Quality is characterized by longish pointed leaves (before 10 cm) and snow-white or pink flowers. Inflorescences can reach a length of 20 cm. Douglas Spirea . The period of flowering is July-September. Flowers - dark pink. The bushes grow up to 1.5 m high. Billard's Spirea . It is a hybrid of spiraea and Willow and Douglas. The bushes are the highest - in front of 2 m. The flowers are pink, collected in longish inflorescences. Blooms from the middle of age and before frost.
Again, before choosing the final site for planting shrubs should be determined by the desired size and type of plant. Varieties differ in size: they can exist small and can fit for a short area, but can grow upwards and sideways. Therefore, for the sake of a solitary planting, the design of hedges and alpine hills, different future plants are chosen. Spirea Little Princess looks great in a compartment with other spiraea varieties, coniferous, lavender. This visibility is suitable for the design of flowerbeds, rock gardens, places near water bodies
Billard's spirea is frost-hardy and shade-tolerant, but it's better to plant it for perfectly illuminated areas
For the sake of living hedges , it is necessary to choose varieties that give a little too much root canopy and are excellent for pruning. Alpine hills are allowed to decorate with slowly increasing grades. And for the sake of a single planting, it is better to choose plants with a formed basal shoot that occupy a huge place. For the sake of rockeries and stony gardens use dwarf varieties. Having selected fairly species that blossom at different times, the gardener can keep up with the flowering spiraea from the spring before the autumn cold.
Features of spiraea reproduction
The shrub breeds like generative (seeds), causelessly and vegetatively (cuttings, layers, bush division). The main method is laborious. It is used preferably by breeders, if they work on the breeding of new species. Seed propagation is planted in autumn, planted in special pallets with soil and germinated with a perforated film. Planting sprouts in open land can be done in the spring. The soil should be perfectly fertilized. Generative multiplication is recommended just for the sake of the spirits of the first group. Hybrid varieties do not give real seed. In order to test the germination of seeds, make an approximate sowing
Vegetative multiplication can exist in 3 types.
Variation #1 - cuttings
For his sake, shoots 10-15 cm long are selected without flowers, treated with a fungicidal substance, after which they are ready for planting in the ground. The best way to plant a spiral in an enclosed space. Earth moisturize, spray water, so that the humidity of the air is about 85%, and cover the stalk with a film.
The film is prepared in advance - pierce the holes for air intake. Set it at 30-40 cm through the cuttings cut.
Variation #2 - multiplication by layers
This is an ingenuous and effective way. The profitability of seedlings, acquired with the help of layers, is very high. The branches of the spiraea are bent, attached to the ground and covered with soil. The branches are quite alive,Variation #3 - the division of the bush
This manipulation is usually performed in the fall or spring. If you need to divide the bush in the spring, then you should choose the gap before the appearance of the first buds. The above-mentioned multiplication of spirea has some kind of significant advantages, for no reason, and shortcomings.
Importance - in the rapid inclusion of plants in profits, a flaw is an unnatural risk of root system infection due to warm weather. To solve this problem, the seedlings are soaked in a fungicidal solution.
General rules for planting spiraea
Spiraea should be planted in slightly acidic, and preferably in pH-neutral soils. The bottom must exist rich in nutrient substances, with ordinary aeration. Spring-sprouting spiraeus should be planted in autumn, and summer-bearing spiders perfectly succed in spring and autumn. Some gardeners adhere to the idea that the chosen moon for the sake of planting summer-bearing species is September. Good neighbors for the sake of spiraea may exist conifers - spruce, juniper, thuja.