Description and features of the cultivation of grefshame spirea
Spiraea is difficult to confuse with other shrubs during flowering, when it is densely covered with small white fragrant flowers. The plant is popularly known as meadowsweet, "bride", "May snow", is one of the most common ornamental shrubs and has more than 90 varieties.
Many were bred by interspecific crossbreeding, as a result of which they became more resilient, fragrant and very effective. One of these hybrids is the gray grefshame spirea, created in 1949 - a very beautiful shrub with drooping arched branches exuding a wonderful aroma. The article is devoted to the cultivation of this plant.
Gray Spirea Grefshame: description and size
The variety belongs to the group of common spirea hybrids, but has a more abundant flowering. It is a hardy frost-resistant decorative shrub resistant to diseases and pests.
Distinctive features of spiraea grefshaym are:
|Dimensions||about 2 m in height and in diameter|
|Branches||thin, hanging, reddish-brown|
|Leaves||about 4 cm long, pointed with serrated edges of gray-green color, pubescent on the back side, the upper side a little darker. Autumn foliage stained in lemon or straw color.|
|Flowers||small, collected in numerous umbrella inflorescences, are located throughout the shoot. Have a pleasant honey aroma|
|Flowering time||mid-May, duration - more than 2 weeks|
|Relation to shading||photophilous, but it feels normal with slight shading|
|Winter hardiness||tolerates frosts well, but at very low temperatures freezing of young shoots is possible|
- Meadowsweet is popular for its benefits:
- Fast growth.
- Excellent cut tolerance.
- Undemanding to the illumination of the site.
- Good tolerance to both moderately low and high temperatures.
What is the difference from Grace's spirea and Japanese spirea?
There are many varieties of this beautiful ornamental shrub, so it is difficult for novice gardeners to choose one among the variety. The most popular, in addition to those described above, are the varieties Graziosa and Japanese.
According to the description, they have a number of differences from Grefshame:
|Branches||Shoots of Japanese spirea have a felt edge, which gradually disappears with age.|
|Leaves||During blooming, they are reddish, after which their surface turns green, and the back side has a bluish tint. In the fall, the leaves turn red and yellow. The shape of the leaves does not differ from Grefshame, but their size varies from 2.5 to 7 cm. Graceia is distinguished by green leaves on both sides, which turn yellow in autumn.|
|Flowers||Japanese spirea is distinguished by corymbose-paniculate inflorescences of pink with a red tint. Graceia has umbellate white inflorescences.|
|The period and duration of flowering||Japanese spirea begins flowering in late July - early August, which lasts up to one and a half months. Graceia blooms in late spring (May) or early summer, flowering lasts about 3 weeks.|
Spirea Grefshaym, like other varieties, is easy to take root and unpretentious in care. In order for the plant to actively develop and delight in annual abundant long-term flowering, it is necessary to follow certain rules for planting and caring for it.
Did you know? Meadowsweet shoots contain salicin glycoside, which is used to make aspirin. It was thanks to this plant that in 1839 the first widely known drug was synthesized.
Selection and preparation of planting material
As planting material, plant cuttings are used.
Gardeners often breed spirea:
- using layering;
For the preparation of cuttings:
- Cut branches from the bush, divide them into cuttings with a length of approximately 10 cm. Strong young branches are used to prepare the planting material. Each stalk should contain 4–5 buds.
- Remove all leaves from the bottom of the stem by cutting them at the base.
- Trim the upper leaves two-thirds of the length to accelerate rooting.
- Soak the cuttings in the Epina solution for 12-24 hours. The concentration of the solution is prepared according to the instructions: 2 ml of the substance must be dissolved in 1 liter of water.
You can plant such material immediately in the soil or in sand pots. In spring cuttings by autumn, such fragments of branches are completely rooted.
Video: propagation of spirea by cuttings
For layering, branches are used that do not cut from the bush and do not require preliminary preparation. The main condition is that shoulder straps used for reproduction must be young and healthy.
- For the reproduction of the "bride" from the bush, the main requirements for planting material are:
- the age of the mother bush is 3-4 years;
- roots should be healthy, not infected by pests.
Timing and Scheme
Depending on the chosen method of propagation, spirea is planted at different times:
- Propagation by cuttings is carried out in early spring. until the buds open or in late autumn, when the foliage is completely fallen.
- When dividing the bush, seedlings can be planted from early spring to late autumn. But better plants take root from mid-August to September. At this time, the soil warms up well, and the air is already quite moist, which prevents the soil from drying out and eliminates the need for its frequent moistening.
- It is better to propagate by layering from the mother bush from May to Juneso that during the summer months shoots give stronger young plants. It is recommended to plant such seedlings in a permanent place in early autumn.
Important! The root system of spirea grows quite strongly, so in order for the plants to actively develop, it is important to observe the distance between the seedlings.
Despite the fact that the spirea is undemanding in terms of illumination and soil quality, its properties are best revealed in a well-lit area. Being in the shade, the plant slows down growth and begins to bloom later.
Rooted sprouts are planted, adhering to the recommended distances:
- for the design of the green hedge - 0.5 m with aisles of 0.4 m;
- when planting in groups, it is necessary to plant them, keeping a distance between bushes of at least 1 m.
The recommended depth of the pit is from 40 to 50 cm, and its diameter is 1/3 greater than the diameter of the root system. Experienced gardeners recommend equipping the planting pits with drainage, which uses crushed stone and sand.
Despite the unpretentiousness of Spirea Grefshame, she needs a minimal set of agrotechnical methods, which are protection from pests, watering, feeding, pruning and preparing the bush for winter.
Did you know? There are many varieties of spirea that bloom at different times. With the right selection of varieties, it is possible to achieve continuous flowering of these shrubs from May to late autumn.
Spirea is most often affected by such pests:
- Spider mite leads to the appearance of yellow leaves on the bush and their early decay, worsens the appearance of the plant. The fight against the tick must begin as soon as the first signs of damage have been noticed. For this, the plant is treated with a 0.2% solution of phosphamide or 0.3% solution of malathion.
- Bean aphid eats inflorescences, resulting in a deterioration in the decorative properties of spirea. Adult insects settle in young branches, as a result of which their growth stops and leaves twist. To combat it, it is recommended to use a 0.1% solution of the primrose.
- Arrow oxalis - a gray butterfly, whose caterpillars gnaw at the foliage and young shoots. Treatment from this pest is performed twice: in June and September. The same drugs as for aphids are effective for controlling lancet.
To prevent infection with pests, it is advisable to carry out preventive spraying with the drug "Fufanon", "Iskra", "Fitoverm" before buds open and after the bush has faded.
Watering and feeding
Despite the unpretentiousness of the bush, it is recommended to feed it before the appearance of flowers, as well as after pruning. As a top dressing, you can use mullein, which is previously infused with superphosphate at the rate of 10 g per 10 liters. Any complex fertilizers will be useful for the plant.
It is recommended to water the meadowsweet after 10-14 days in the amount of 1.5 buckets per bush. Also, for the purpose of prevention, in early spring, you can feed the plant with a remedy such as Kemira Universal. For 1 m², 100 g of the drug will be required.
Important! Hybrid varieties are not propagated by seeds, since their germination is only 5%.
Since the roots of the plant do not go deep into the soil, they are prone to drying out. To avoid this, it is necessary to mulch the soil after irrigation with a layer of peat. After watering, gardeners carry out cultivation, which is aimed at ensuring the flow of oxygen to the root system of the meadowsweet, and the removal of weeds.
Experienced gardeners do not disregard this shrub, despite its unpretentiousness. If you prune this plant in a timely and correct manner, it will delight you with abundant flowering for many years.
Trimming shrubs has several purposes:
- Shrub rejuvenation and disease prevention. Spirea grefshaym can grow in one place up to 30 years. But in order to make the shrub gladden every year with abundant flowering, it must be periodically rejuvenated, cutting off all branches during the first vegetation, leaving some of the youngest and strongest. In adult bushes, after 3 years, the oldest branches are removed to the base. At the same time, all dry and frozen branches should be cut.
- Flowering stimulation. In order for the meadowsweet to flourish the next year, from July to September you need to trim the tops of the faded branches. Such bush treatment also contributes to a more compact crown shape.
Video: Gray Spirea Grefshaym (meadowsweet)
Spirea easily tolerates frosts, but in harsh climates, when the temperature drops below + 25 °, shrubs need to be insulated. To do this, the branches are collected in a bundle, bent to the ground and pinned. A bush prepared in this way should be sprinkled with fallen leaves and crushed with branches to prevent blowing out of the insulation.
Grefshame can be propagated in several ways.
To do this, use:
- fragments of the maternal shrub;
From the bush
Spirea easily tolerates the division of the bush throughout the growing season. However, if landing is carried out in summer, it is important that during the landing period it is not hot and cloudy weather lasts at least a week.
In this case, the soil must be constantly moistened. The best period for propagation from the bush is considered to be the period from the end of August to the beginning of September, when the heat decreases and the humidity rises.
To reproduce the meadowsweet from the bush, you must:
- Dig a bush (approximately 55-60% of the apex projection should be captured. You may have to cut a few roots that go far from the bush.
- Put the roots in a container with water to wash away the adhering soil.This is necessary so as not to cut the roots together with an earthen lump, which leads to damage to the roots.
- Divide the bush into several parts. There can be 2 or 3, the main thing is that in each part there should be at least 2 strong branches and strong developed roots.
- Prune the roots. Damaged sections and long roots need to be adjusted to the total length. Cropped roots after planting will begin to grow and branch rapidly.
- Dig a hole, pour a small mound in its center, on which to place a seedling, evenly distributing the roots around the elevation.
- Fill the hole with soil and water well in 2-3 receptions.
On hot days, the seedling must be watered every other day, in cloudy weather it is enough to do this once a week.
Propagation by cuttings is the simplest and most common way.
In order for the stalk to take root, you must follow several rules:
- Before planting, it is advisable to sprinkle the cuttings previously soaked in “Epin” with a rooting agent (you can use “Kornevin”, “Rooter” or other means).
- You can plant immediately in the ground, but it is better to use seedlings pots filled with sand.
- Planting material must be deepened in sand at an angle of 45 °.
- Periodically moisten the sand, preventing it from drying out. Maintaining air humidity is an important condition for germination of the meadowsweet.
- For successful rooting, cuttings need to be covered with a glass cap (jar or glass) or wrap the pot with a plastic bag.
Layings are done in early spring, when the buds begin to bloom.
To do this, you must:
- Prepare shallow grooves near the mother bush.
- Choose healthy peripheral branches on the mother bush.
- Without cutting from the bush, place layering in the prepared grooves.
- Pin the layering and sprinkle with soil.
- Drive in small pegs to which to attach the tips of the branches so that they remain in their original position.
- Observe the moisture in the soil in which the layering is located.
- In the autumn, lay off cuttings from the bush, cut into pieces, receiving seedlings.
- Plant seedlings in a permanent place.
Video: Spirea propagation by layering
The use of spirea grefshaym in landscape design
Spirea is very much appreciated by landscape designers:
- With its help, you can create beautiful compositions, it tolerates pruning and allows you to give the shrub a variety of forms. This plant coexists perfectly with other plants, decorating the entrance areas, protecting from drafts and covering with itself the unpresentable corners of the courtyards.
- The white color of flowering shoots and its ability to get along with all kinds of plants allows you to use the bush in compositions for every taste. This shrub looks great in combination with daffodils, primroses, crocuses, tulips, asters, roses, Turkish carnations.
- Hedges look very beautiful in the performance of this plant, delimiting the functional zones of the plots.
- It can serve as a fence or land along the fence.
- When planting in single bushes, thanks to a spreading crown and a placer of white flowering branches, the spirea itself creates a complete laconic composition.
Spirea Grefshame is one of the most common varieties of shrubs. Both experienced landscape designers and beginners give preference to it, since this is exactly the plant that, with minimal labor and time, will delight every year with beautiful fragrant flowers. Living and combining well with any ornamental plants, Grefshame allows you to create compositions for every taste.