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Features of growing spirea

Features of growing spirea


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Spirea (from lat. Spiraea) belongs to the genus of deciduous and very ornamental shrubs from the family of pink (Rosaceae). A significant part of the species begins to bloom only in the third year of life, which makes spirea popular not only in decorative floriculture, but also in forestry.

These beautifully flowering plants, very widespread in our country, from 15 cm to 2.5 m high, have a fibrous and shallow root system, which implies the observance of special requirements when planting or transplanting. The average productive life of the bush is about 15-20 years.

Spring planting

In spring, it is necessary to plant spiraea exclusively for the summer flowering period. The main condition for the proper planting or transplanting during this period is to carry out the procedure before the leaves bloom.

Before purchasing seedlings, you must carefully examine the root system of the plant. The roots should not be overdried, as well as have pronounced damage or rot. Shoots of a seedling of decorative culture should be flexible and have good buds. Before planting, it is necessary to carefully shorten the strongly overgrown roots. In the presence of a weak or damaged root system, it is recommended to prune the branches, and then soak the plant in a solution of a rooting agent or growth stimulator.

When choosing a place for planting, one should take into account the botanical and varietal characteristics of the plant, including the formation of copious root shoots. Spirea is an unpretentious plant, and the best for its cultivation is a sunny area with fertile soil.

How to plant a spirea

Autumn landing

Planting or replanting a plant in the autumn period involves combining it with the process of dividing an adult bush. The event is held until the end of the fall. It is necessary to divide, as well as transplant, plants whose age is three to four years. More mature bushes are much more difficult to plant.

The root system of the extracted plant should be immersed in water or rinsed under cool running water. Then, the bush is cut using a sharpened clean secateurs into several parts that have a well-developed root lobe and a couple of strong shoots.

The standard technology for planting a decorative flowering shrub is as follows:

  • it is necessary to dig a landing pit having strictly sheer walls;
  • the size of the pit must be at least one third larger than the volume of the root system of the prepared seedling;
  • the landing pit should settle for a week;
  • immediately before landing, filling in the pits of the drainage layer of brick fight or crushed stone with a thickness of 15-20 cm;
  • on top of the drainage into the pit, it is necessary to fill in a couple of parts of sheet or sod soil, as well as one part of sand and one part of peat;
  • in the planting pit should lower the root system of the spirea, straighten it, and then sprinkle with nutrient soil to the root neck of the plant.

The soil should be compacted very carefully, avoiding damage to the roots of the plant. Immediately after planting or transplanting, abundant watering is carried out at the rate of a pair of buckets of water per plant, followed by mulching with peat.

Care after landing and transplanting

A properly planted or transplanted ornamental plant takes root quickly and easily, so it does not need to carry out any special care measures. Standard care is as follows:

  • the first two weeks after planting should be accompanied by abundant soil moisture, which will allow plants to take root and adapt to a new growing place as soon as possible;
  • even sufficiently winter-hardy and frost-resistant varieties and species planted in the autumn period require the use of high-quality shelter for the winter period, especially in regions with little snowy or too frosty winters;
  • species and varieties of spirea blooming in the summer, as well as very young plants, need for the first time after planting in better and more plentiful waterings than flowering decorative shrubs.

A very good result is mulching the soil around the bushes with a layer of organic matter. Mulch not only reduces the need for irrigation, but also reduces the number and growth rate of weeds.

Pruning rules

Shrub crops have the ability to grow, which involves a systematic pruning. Early flowering young plants require annual pruning only when the shoots freeze. In older bushes, all old shoots are subject to removal, which will allow the plant to form a new productive bush. A couple of years after planting, it is necessary to remove all weakened and old shoots. Sanitary pruning is carried out in the spring or summer.

Varieties and species blooming in summer should be pruned annually, exceptionally in early spring. Shorter shoots are carried out to large buds. All weakened and poorly developed as well as old shoots are subject to complete removal. Proper pruning contributes to the rapid development of the plant.

Top dressing and watering

Along with other flowering plants, the spirea needs to be nourished. If the soil on the site is fertile and high quality, then it is enough to feed the ornamental shrub no more than once a year. When cultivating plants on poor soils, it is allowed to apply fertilizers two or three times a year. It is advisable to use manure or bird droppings as organic top dressing, divorced in a ratio of 1: 10 and infused for a week. The working solution is prepared at the rate of one part of the infusion per ten parts of water.

Feeding is recommended in the evening, after sunset. Before the procedure, it is necessary to loosen the soil and make sure that the plantings are cleaned of weeds and abundantly moistened. After top dressing, abundant irrigation measures are also carried out. Mineral fertilizers are used at the rate of 65-70 g per square meter of planted area.

Growing Tips

The most popular in our country is Japanese Spirea (Spiraea japonica). This type of deciduous decorative shrubs includes several varieties. Tall forms are used in landscape design as hedges. Low-growing varieties are more in demand as ground cover plants, but also find application in the design of borders.

If there is a need to plant several sprays at once on a site, then between decorative bushes it is required to maintain a distance of 0.5-0.7 m. Decorating a site with hedges involves planting spirea with a distance between plants of 0.4-0.5 m, and between rows 0 , 3-0.4 m.

Spirea: pruning and care

The soil in the trunk circles must be loosened, combining this event with watering and the removal of weed vegetation. It is especially important to carry out cultivation for young landings. It should also be remembered that in frosty winters and with sharp temperature differences, some species of spirea, in particular, nippon spiraea and varietal pointed teeth, are prone to freezing of shoot ends. Therefore, in the autumn period, it is recommended to warm the plants in order to protect the root system.