Blue and blue hydrangea varieties
Flowers of blue or blue color look very aesthetically pleasing and cause interest among gardeners. Hydrangeas of such colors are in great demand. Designers love to use them to design garden plots. This article will tell you about the popular varieties of blue and blue hydrangeas, the use of these beautiful flowers in landscape design, planting and caring for them.
Blue and blue hydrangea varieties
Hydrangeas of such colors usually belong to large-leaved species (Hydrangea macrophylla), which is thermophilic. Now many frost-resistant and relatively frost-resistant varieties blooming with blue-blue inflorescences have already been bred. Some of them can be grown in open ground in the middle lane.
Did you know? The name "hydrangea" for this plant crop was given by the French naturalist botanist Philibert Commerson. Translated from Latin, this word means «garden».
Blue Wave or Blue Lagoon
The variety of hydrangea Blue Wave of the Dutch selection blooms with beautiful large (up to 18 cm) inflorescences, ranging in color from white to saturated blue, depending on the quality of the soil. It is also called the Blue Lagoon.
Usually the blue on the petals appears at the end of flowering. The plant blooms in July-August. The bush is characterized by rapid growth and soon grows to 1.2–1.5 m. The shoots of the current year are green, and the shoots of the past are stiff, with a burgundy hue.
They are quite durable. The bright green foliage has notches and maroon veins. Blue Wave is not afraid of frost and can tolerate frosts down to -35 ° C. It is repairing, that is, it blooms on the shoots of the first and second years of life.
Another winter-hardy variety of hydrangea with blue-blue flowers, blooming in July-August. Its large terry inflorescences reach 25 cm in diameter. The height of this flowering bush is 1.5 m, its width is up to 0.9 m. It has thick shoots and long green leaves. Its winter hardiness reaches -26 ° C, so in the middle lane for the winter the bush is covered.
Did you know? About 95% of hydrangeas are grown in Holland. About 40 million units of these unusually beautiful flowers are sold at Dutch auctions and fairs a year.
The Mini Penny hydrangea cultivar is not growing fast and reaches a height of 0.6–0.9 m and a width of 0.9–1.2 m. It has large spherical inflorescences of blue color up to 20 cm in diameter. On alkaline soils, they can become pink. Flowering is observed in July-September. The leaves are dark green, up to 15 cm long.
This variety prefers fertile acidic loams. In winter it can freeze, as it tolerates frosts to -23 ... -27 ° C. Therefore, the winter culture will need shelter. It can be grown as a container plant. Resistant to disease.
This shrub grows to 0.8–1 m in height and width. It is densely strewn with flowers, whose color depends on the composition of the soil. Depending on the acidity of the soil, the buds are purple, violet, pink and blue. Even at the same time, blossoming inflorescences can have different tones, which gives this bush a colorful look. Ramars loves moisture and grows well in partial shade.
This ornamental shrub reaches 1 m and is distinguished not only by the blue-violet tones of lush inflorescences, but also by the unusual shape of the flowers. They look like popcorn flakes. Flowering time - July-August. In width, the bush grows to 0.8–1 m and has dark green foliage. Resistant to powdery mildew. It blooms only on two-year-old shoots. In severe frosts it needs to be covered.
The height and width of the shrub of this variety reaches 1 m. It blooms with semi-double flowers from July to October. Prolonged flowering is due to maintenance. Inflorescences have asymmetry, may have blue or purple tones. Their sizes reach 12–20 cm. Dark green foliage acquires reddish hues by autumn. In the middle zone of the Russian Federation, bushes require shelter for the winter. Penumbra is preferred for this variety.
This variety grows quickly and reaches a height of 1.5 m. The higher the acidity of the soil, the more saturated the color of the flowers - from light blue to almost blue. Long flowering - June-September. Inflorescences of 15-30 cm in size appear on the shoots of the current and last year. The frost resistance zone is 6A, that is, shelter is required for the winter.
Application in landscape design
Blue hydrangea is perfect for landscaping park areas, as well as for creating a rustic style on the site or in the garden. Long flowering and beautiful color of flowers allows you to use this shrub plant in a single planting to create a colorful accent.
The free space around contributes to a more magnificent flowering. Hydrangea can also be planted in a group, maintaining the recommended distance between the bushes. From it you can grow a flowering dense hedge by planting along paths and fences.
Hydrangeas can be planted in combination with other plants:
- Herbs. They should complement or frame the bushes. Decorative flowering or non-flowering herbaceous plants planted next to hydrangea should be moisture-loving. Of non-blooming herbs nearby, you can plant cereals, ferns, hosts or ivy. Of the flowers, periwinkle, phlox, daylilies and lilies look good.
- With other bushes. Ornamental shrubs that bloom at other times stretch the flowering of the garden composition. Therefore, often lilac, spirea or mock tree are planted nearby, blooming in the spring. Roses look beautiful next to hydrangea. With their help, you can achieve interesting color combinations.
- In combination with coniferous plants. Against the background of evergreens, hydrangea creates a beautiful and colorful accent, revitalizing the entire composition. It is often planted in combination with thuja, but other conifers can also be used.
- This plant crop will look spectacular with other hydrangeas - tree and panicled with white or pink buds. Caring for them is about the same and soil requirements as well.
Outdoor Landing Rules
Hydrangea can be planted in a permanent place in spring or autumn (in September). In the spring, planting is carried out when the snow melts, and the earth warms up enough. Penumbra is usually chosen for planting. This plant crop does not like direct rays of the sun. But too shaded area can lead to the fact that the buds due to lack of light will bloom later and not magnificent.
It should be noted that over time this bush grows well, becomes wide and takes up a lot of space. Therefore, do not plant blue hydrangea too close to other plant crops. From them the bush should be at a distance of not less than 2 m.
Landing area is prepared in advance. Keep in mind that hydrangea loves moist, well-drained soil. The best soil composition is humus, sheet land, peat and sand in a ratio of 2/2/1/1. This plant loves acidic soils, in which the PH reaction is 5–5.5 units.
The landing process itself is as follows:
- They dig a hole depending on the size of the root system of seedlings. Usually it is 0.6 m wide and 0.4 m deep. If planting in a row, you need to dig a trench of the required length. When it is planned to create a lush, dense hedge, seedlings are planted at intervals of 0.6–0.7 m.
- 24 hours before the landing, the pit is well watered. To do this, pour at least 30 liters of water into it.
- Pre-prepare a nutritious soil mixture of peat and humus. To improve the composition, 50 g of mineral fertilizers for hydrangea are added to it.
- A hole is formed in the center and a seedling is placed in it. Then gently fall asleep, tamping the earth around the bush.
- Then water abundantly.
After planting with blue hydrangea seedlings, it is advisable to mulch.This procedure will protect the earth from drying out and from the active growth of weed grass.
Important! When planting hydrangeas, you need to make sure that the root neck is located at ground level. Its deepening up to 2 cm is permissible.
How to care for a bush
Hydrangea needs to be regularly moistened, since without water the plant will begin to dry. It is recommended to irrigate at least 1-2 times in 7 days. Under one adult copy, you need to pour about 20 liters of water. In dry, hot weather, the frequency of watering is increased, and if it rains, then watering is skipped.
To improve the quality of blue, it is necessary to periodically carry out hydration with the addition of aluminum sulfate. It is also useful to water an acidified composition once every 7 days. For this use citric acid solution (1 tbsp. per 10 liter bucket). For blue hydrangeas, they often take soil acidification aluminum sulfate (500 g per 1 m²).
If the inflorescences have an insufficiently saturated color, then it is applied several times per season.
So that the soil does not dry out, and weeds do not grow, it is better to mulch the hydrangea root zone. Needles, sawdust, sand, peat are well suited as mulch. Culture needs to make nutrients into the soil.
Gardeners recommend feeding at least 3 times per season:
- In the spring (at the end of May) a mixture of superphosphate and potassium sulfide is added in a ratio of 2 to 1. For this purpose, you can take a solution of bird droppings 1 to 10, in which 20 g of superphosphate, 10 g of nitrate and 10 g of urea are stirred.
- Second fertilizer application occurs in the summer during budding. A mixture of superphosphate and potassium sulphide in a ratio of 2 to 1 is also used.
- Last feeding It is produced in the second half of August during the period of violent color. Organic fertilizers (manure, mullein, bird droppings) are well suited for this.
Important! Do not overdo it with the amounts of top dressing, as they greatly affect the size of the buds. Too heavy flowers can break the shoots under their own weight.
This plant crop needs pruning.
It is recommended to carry it out as follows:
- In the middle of spring, a small part of the old branches are removed. For this, a 1/4 length of the shoot is cut with a well-sharpened tool. It is also necessary to shorten the annual shoots during this period, leaving at least 5 buds on them.
- In autumn, when the buds bloom, they are cut.
- An old 20-year-old plant can be rejuvenated by completely cutting off all branches to hemp.
It is also necessary not to forget about sanitary pruning - remove broken and damaged shoots.
In winter, the shrub should be covered. For this purpose, use a spunbond or spruce branch. Before this, it is recommended to spray the plant with Bordeaux liquid. The ground around the bushes for the winter must be mulched to protect the root system from frost, and the branches are bent to the ground and covered with sawdust or fallen leaves.
There are different ways of propagating blue and blue hydrangea. Each of them has its advantages and disadvantages.
Did you know? In the language of flowers, hydrangea means reminder, modesty and hope. She says, "Remember me." In Japan, this flower is a symbol of sincerity and cordiality.
Cuttings are the most common and easiest way to propagate. this beautiful flowering plant. It is suitable for all varieties of hydrangea and retains all the qualities of the mother plant. Experts recommend conducting it in the middle of the summer period, when hydrangeas will have buds.
For this purpose, you need to choose a green stalk from the middle of the side shoots of the last or current year. It should have several leaves and buds. For breeding, it is better to take younger specimens that grow in a sunny area, as they better take root and are stronger.
It is better to carry out the cuttings themselves in the early morning in order to preserve the greatest amount of moisture in them. It is also necessary to remove the top having a color, since this part is not suitable for landing. The rest of the shoot is divided into several pieces. Thus obtained planting material is immediately placed in water. For better rooting, a growth stimulator (Kornevin, Zircon) is preliminarily added to the water.
Then they prepare nutritious soil from peat and sand mixed 2 to 1. Cuttings are placed in the prepared soil. Then the container with the planting is covered with a plastic bag to create a greenhouse effect. Daily shelter is removed for ventilation and humidification is carried out. Cuttings take root in about a month.
The disadvantage of this method is that it will take a lot of time. From the time of sowing to flowering of this plant crop, 3 years will pass. In addition, growing from own seeds is suitable for hydrangeas of natural species, but for hybrids it is no longer suitable. But he can give a lot of material for planting.
Seeds are sown in September or early October. However, they do not need to be processed. Seeds are immediately sown in a container with prepared soil. Nutrient soil mixture is prepared from 4 parts of leafy soil, 2 parts of peat and 1 part of river sand. You do not need to deepen the seeds, otherwise they will not germinate. The landing is moistened with a spray gun and covered with a polyethylene film.
Every day, such a shelter is removed for 15-20 minutes for ventilation and humidification is carried out according to my need, so that the earth does not dry out. Sprouts should appear within 3 weeks. They are looked after and planted in the ground in a permanent open place for the third year. By this time, planting material should reach a length of approximately 32–40 cm.
Hydrangea, like many bushes with well-bent shoots, can be propagated by layering. For this purpose, only large and well-grown bushes are suitable. Rooting by layering is quite easy, but it does not give much planting material.
This process is carried out in the spring in late April or early May. For this purpose, choose the lower branches. At the same time, an incision is made on the bark of the lower side of the branch and a match is placed there so that it does not quickly drag on. Then, a branch with an incised section is placed in a dug hole 12-15 cm deep and dug up for rooting.
To fix a branch, use a bracket or hairpin. The landing site is well moisturized. Throughout the summer, roots form at the incision site. The following spring, the resulting planting material is separated from the mother bush and planted in a permanent place. One large bush can give 4–5 layers for rooting.
Dividing the bush
This method is rarely used, and mainly when transplanting hydrangea. This process is recommended in early spring. On the eve of transplantation, the crop is well moistened. After carefully digging out, trying not to injure the root system. Then the roots are shaken off the soil, and after they cut dry and damaged areas.
The bush is divided into several parts (usually 2–4 pieces), which must necessarily have rhizomes. Each resulting planting material is planted on a prepared place as an independent bush. The ends and shoots are pre-trimmed.
Important! It is advisable to sprinkle the cut sites with activated carbon powder. This will protect the bush from infection.
To do this, you need to choose a bush around which a shoot is formed, suitable for planting. Then the top layer of soil around the hydrangea is removed so that sections of the root system with offspring become visible. The procedure must be carried out very carefully so as not to injure the root system.
Then the shoots with a piece of root are carefully separated. It is necessary to take several such instances. This material for planting is immediately planted in a prepared place.On it shoots are grown 1-2 years. Then they are transplanted to a permanent place.
Now on sale you can find different varieties of blue or blue hydrangea. The color intensity of the inflorescences will depend on the quality of the soil, which will need to be acidified. This shrub needs some care and shelter for the winter. The variety you like will be easy to propagate.