Flowering shrubs are a real find for decorating any backyard plot or garden.
One of the most beautiful ornamental cultures remains the rhododendron Yakushimansky. It is also called the "rose tree".
With full care for him bloom will be abundant and long. In this article, we consider the variety with a detailed description and photo.
The Yakushima rhododendron is a natural form of the Degron rhododendron. But some gardeners consider it a separate species.
The root system is of surface type, so the plant will not tolerate loosening, digging and flooding. The leaves are narrow, thick and leathery. They have a glossy surface. The color is dark green, on the inside brown with slight pubescence.
The diameter of the flowers is 7 cm, they are all in inflorescence of 5-7 pieces. At the beginning of flowering petals pale pink color, and in the end - white. Flowering begins in May and ends in June. The adult plant reaches a height of 1 m, the span of the crown is 1.5 m. Every year these figures increase by 10 cm, so the shrub is recognized as slow-growing.
What is the use of plants?
Rhododendron Yakushimansky - an indispensable plant in the treatment of diseases of the heart, blood vessels. Thanks to him, the strength of heart contractions increases, blood flow increases. Infusion of the leaves of the plant is in great demand in the treatment of diseases such as:
- chronic colitis,
- vegetative neurosis,
- Receiving infusion is useful for infertility and inflammation of the uterus.
Difference from other types
The main difference of rhododendron of Yakushimansky from the rest of the variety of this culture in abundant and bright bloom. Besides, There is a wide range of varieties, each of which is distinguished by external characteristics. This allows you to plant several types of culture and make your garden original and bright. In terms of care, there are no special differences, but the rhhododendron Yakushimansky is more resistant to diseases and pests.
If you choose the right place for growing and comply with all agricultural practices, the plant will never get sick and suffer from pests.
Description and photo varieties
In the 1980s, Blüretta or Blurette was awarded a silver medal at exhibitions in Belgium and Düsseldorf. The bush is low, with a rounded crown. The leaves are long - 15 cm, leathery and dark green. The inflorescences are purple-pink, the edge is corrugated, and a dark edging runs along it.
A compact bush, its diameter is 1.3 meters per year; the height you grow is 10-15 cm, which distinguishes the variety from the rest of its counterparts. Variety Percy Wiseman (Percy Weisman) is perfect for planting in the heather garden. White inflorescence with pink blush on the edges. At the end of flowering, they become golden-white.
Flowering occurs in June, the color of inflorescences is bright pink. The villi present on the inside increase resistance to missing moisture. The variety is presented in the form of a dense, slow-growing shrub. For 10 years, its height reaches 1 m.
An adult plant grows to the level of 1 m. Shoots grow intensively. Bushes dense, spherical shape. Inflorescences are pale lilac, but as they bloom, they become lighter. Along the corrugated edges there is a golden brown edging. It is necessary to grow a bush in cool, fresh and drained soil.
The height of the bush 110 cm. Flowering lasts from May to mid-June. Differs grade winter hardiness (up to -28 degrees). Exquisite look, which has contrasting flowers. Petals dense, resistant to bad weather.
A squat and evergreen shrub whose height is 90 cm. Inflorescences are spherical, the edges are corrugated. Blooms profusely from May to June. The leaf plate is dark green, matte. The variety is resistant to diseases, its decorative appearance and the brightness of flowers.
Rhododendron Doc is an evergreen shrub whose height and diameter is 1.2 m. The shape of the leaves is oval, the leaf plate is dense and leathery. Blossoming magnificent and beautiful. The size of the inflorescences is large, pink color. All of them are collected in inflorescences of 8-10 pieces.
Rhododendron yakushimanum kalinka (Kalinka rhododendron) is an evergreen that is unique in its hardiness and cold resistance (you will learn about evergreen rhododendrons here, and we wrote about frost-resistant varieties here). He brings great heat and sunny location. Differs over abundant flowering. Inflorescences are ruby-pink, with a white center. Their diameter is 6.5-7.5 cm.
Dome-shaped and dense small bush. Differs in slow growth. Inflorescences can be from pale pink to white-golden color. The edges are corrugated, and there is a brown edging along them. Leaf plate is dense, green, leathery, has a slightly elongated shape.
It is represented by blue, white and pink flowers. The height of the bush reaches 2.2 m. During flowering, it looks incredibly beautiful. All flowers are collected in inflorescences of 5-7 pieces. Their edges are corrugated, and the petals themselves are tender. The leaves are dark green, leathery, on the inside there is a slight feathering.
This variety has light pink buds, which after blooming turn white with yellow splashes. Inflorescences are conical in shape, and flowering is abundant even at a young age. Leaves are dense, dark green color, the extended form.
What needs to be done during this process?
During flowering care should be maximized. Water the plant as it dries earthen coma. Top dressing to bring mineral complex with prevalence of potassium, phosphorus before flowering. When making their dosage reduced by 2 times. All faded flowers are removed, as this will not only prolong flowering, but also not disturb the decorativeness of the bush.
What if it does not bloom?
Rhododendron Yakushimansky does not bloom if:
- The soil became alkaline. To solve the problem, add peat and pine bark to the soil mixture.
- Lack of sun The plant prefers penumbra, but in the shade it stops flowering, and the leaves burn in the sun. To solve the problem make superphosphate. It stimulates flowering bush.
- Fungal diseases: rot, late blight. Immediately treat infected plants and remove the affected shoots.
Use in design
Rhododendron Yakushimansky is widely used in landscape design. The following applications are possible:
- Single landing. They perfectly complement the tapeworm on the background of a green lawn.
- Use in Japanese gardens. Looks great in combination with green trees and bushes.
- Garden compositions. Rhododendrons look incredibly beautiful in combination with other flowering bushes, for example, with spirea and hydrangea.
- Group landing. Choose varieties according to the height of the bush and the color of flowers.
When choosing a place to follow the following recommendations:
- Direct sunlight should not fall on the plant.
- The place should be as protected from the wind as possible.
- For rhododendron, light partial shade is necessary, as growth and cultural development stops in the shade.
- Groundwater level should be no higher than 1 m.
What should be the soil?
This plant prefers loose, sour, nutritious soil. You can cook it at home. To do this, take the following components:
- peat land - 2 parts,
- coniferous land - 2 parts
- river sand - 1 part.
Usually planted in open ground at the end of April, when the earth will be completely warmed by the sun.
Also, planting is carried out in the fall - in early September, before the onset of frosts.
When planting, do not deepen the neck of the root. Otherwise the seedling will rot.
It is important to ensure that the root system is 3-4 cm above the soil. Between seedlings to observe the interval of 1-2 m. After planting, water the plant.
Rhododendron Yakushimansky - frost-resistant culture. She is able to withstand cold to -30 degrees in winter. But young seedlings for the winter will have to cover.
The plant is moisture-loving, so the amount of watering will have to be monitored. Moistening of soil is carried out 2-3 times a week. If the weather is dry then spray.
For full growth plant fertilize 3 times per season:
- The first time - before flowering (20 g composition per 1 liter of water).
- The second time - after flowering.
- The third time - at the end of August (25 g of superphosphate and 15 g of potassium sulfate).
Rhododendron Yakushimansky does not need special pruning. But there are situations when these measures are important, for example, for the removal of dead wood and dry branches.
How to prepare for the winter?
Rhododendron Yakushimansky perfectly tolerate low temperaturesso it is not worth covering it for the winter. But the young shoots for 2-3 years will have to cover. It is used for spruce branches or dry foliage.
In the fall, plant care includes the following recommendations:
- Watering to perform before the first hard frost. This will prevent root system dehydration.
- In the autumn pour a mulch layer. Its thickness is 10-15 cm. You can use peat, pine needles, dry leaves. This will protect small roots from cold.
Video on the preparation of rhododendron for wintering:
Transplantation of a plant is carried out painlessly at any age. But it is only important not to disturb the earthen room, otherwise the root system can be injured. The best time for transplanting is spring and autumn.
Watch a video on plant care:
This plant propagates in several ways:
- Layering. In the spring, select the lower branch, slightly cut it and install it in the ground. Layers water and add nutritious soil. In mid-July, the layering will give the roots, after which it is cut off from the mother plant and transplanted to another location.
- Seeds. Their land in January and February. Sow superficial, use nutrient soil. The first shoots will appear in 7 days. For a permanent place seedlings landed in a year.
- Cuttings. To obtain planting material, cut off a 5-cm long twig. There should also be 3-4 internodes on it. Place the cuttings in the peat-sand soil. During the month rooting takes place and new shoots and leaves form.
- By division. Adult bush removed from the ground and divided into 2 parts. Each part to land separately. After 2-3 years, the plant will fully recover and acquire a decorative appearance.
Diseases and pests
Among the diseases of danger provide:
- Late blight. The leaves turn yellow and fall off, the root system rots, and the bush itself fades. For treatment, use a solution of Bordeaux mixture.
- Gray rot. On the leaves, branches and buds formed a dark spot. For treatment, treat the hive and the ground with a 0.2% solution of Fundazole.
- Fusarium The leaves turn yellow, the trunk begins to rot. To combat sprayed bush 0.2% solution of Fundazole.
The following types of pests are dangerous:
- Bug. Yellowish dots form on the leaf plate. The leaves themselves fall off. To fight use Diazinon.
- The scarlet. It settles on young buds, stems and buds. The parasite sucks the juice from the plant, with the result that it lags behind in development and sheds leaves. To combat spray bush karbofos.
- Spider mite He defeats the leaves by drinking juice from them. For treatment, treat the plant with a 0.35% Keltan emulsion every 6 days.
Prevention of various problems
When growing rhododendron of Yakushimansky the following problems are possible:
- Bud fall. The main reason is insufficient soil moisture. For prevention, conduct regular watering, not allowing the land to dry out.
- Weak flowering and small leaves. This is a symptom of nutritional deficiencies. For prophylaxis, make the subcortex in the form of potassium nitrate.
- Small and yellow leaves, slow growth. This is the result of the bay, so it is necessary to normalize the irrigation system.
Rhododendron Yakushimansky - decorative culture, which is used in the design of the garden and flower beds. You can plant bushes singly or in groups. And although the care for them is incredibly simple, there should be no mistakes, as this is fraught with such consequences: the lack of flowering, stunting, foliage fall.
(description of the variety, photo)
Percy Weisman Rhododendron - A hybrid of the Yakushima rhododendron, a flowering shrub 90-130 cm high, up to 170 cm wide. The bush is compact, 10 years old - 100 cm. It blooms for 23 days. Flowers are collected in 15 pieces in inflorescences. The leaves are glossy, neat.
Decorative. Bright pink buds are revealed in pale pink flowers with a peach shade and a slightly yellow center. On the central petal are subtle specks. At the end of flowering petals brighten, become creamy-white.
Using: single planting, group planting, rock arias, heather garden, Japanese garden.
Characteristics of the plant. It prefers well-drained, moist soils, but does not tolerate high groundwater levels. It grows well on loose, breathable, humus-rich acidic soils with a pH level of 5.5. Requires careful shelter for the winter.
How to plant rhododendron Yakushiman
Rhododendron is planted in open ground in April or early May, when the sun warms the soil well. If you do not have a little time, then the bush can be planted before buds begin to bloom. Yakushimanskogo grade accustomed to the height, they are well decorated with alpine slides. Planting it in a flower bed, consider in advance the size of an adult bush.
The plant will take root well in a slightly shaded place, it does not like direct sunlight. The south-western side of the garden, protected from the wind, will be a great place to create rock aquarium. Rhododendron will be good under the shade of pines or oaks, but fruit trees and trees with a shallow root system are not neighbors.
The soil for planting is needed acidic and well hydrated, loose, but not porous. Suitable mixture:
- sour peat, sawdust, sand (2: 1: 1),
- high peat, leaf ground, sand (2: 1: 1),
- riding peat, coniferous soil, sand (2: 1: 1).
Do not attempt to fertilize the mixture with humus, sawdust, manure, fresh leaves, ash. You can add mineral fertilizers and sulfur. The pit for planting is prepared as follows: at a depth of –40 cm, at a width of 70 cm. Drainage in the form of expanded clay, pebbles, or any other material that does not contain calcium can be laid at the bottom.
The sapling of the Yakushimansk rhododendron, before planting, is immersed in water for a few minutes, so that the root becomes wet, and the earthy clod is completely saturated with moisture. When planting a shrub, do not bury its root neck. If the seedlings were buds, then after planting they should be immediately removed.
Care for rhododendron yakushimansky
The first procedure after planting is soil mulching. It is covered with 5-8 cm of sawdust, peat, pine bark or needles. This helps protect the roots from the sun and frost, reduces the number of weeds, and most importantly, the mulch retains the moisture that rhododendron loves so much. Mulch does not need to change, you just need to fill up a new one every autumn.
Rhododendron is watered 3 times a week, until August. The bush is quite capable of absorbing 10 liters of water. Young seedlings are watered every other day in half the volume. If you are not sure of the acidity of the soil, then add electrolyte to the water for irrigation or let it ferment a slice of rye bread. If summer is hot, then in the early morning or in the evening the bush is sprayed with soft water.
When the plant feels good, fertilizing is produced in the spring or in the middle of summer. To do this, use organic fertilizers that do not contain lime and chlorine. Suitable mixture:
- from potassium superphosphate, potassium sulfate and ammonium,
- from superphosphate, ammonium sulfate, potassium and magnesium (10: 9: 4: 2).
In winter, in the cold, rhododendron Yakushiman twists its leaves into a tube and winters safely. If you are still worried about the plant, then you can tie it up, and put fir branches in the middle. It is not necessary to cover the sacking with a sacking, it will delight with apple blossoms in late spring.
Rhododendron is not pruned. This is done only if its form does not triple the gardener, and even then this procedure can be carried out 3 years after planting. If you still had to cut the branch, then the cut must be processed with garden pitch. To achieve abundant branching, you can pinch a young bush.
The soil around the bush is not touched, much less loosened. Weeds are carefully removed manually. Faded buds need to be plucked so that next year the flowering will be more magnificent. Planting and caring for rhododendron does not require much effort from the gardener, and the right agricultural technology will largely protect the plant from pests.
Diseases, diseases and pests of rhododendron
Yakushiman rhododendron is quite fastidious to the environment. The bright sun on it leaves brown spots, burns. The same nuisance happens during wintering, when a twisted leaf of a plant exposes one side to the sun. If the damage is small, then the leaf will recover during the growing season.
Pay attention to the leaves of the plant after wintering: if they do not unwind, then the bush does not have enough moisture. Without starting to water and spray it urgently, you can lose a bush. Excessive moisture can lead to weakening of the plant, fungal diseases and freezing in winter, so drainage is so necessary when planting.
Если у рододендрона к концу лета опадают все старые листья, слабо растут побеги, а бутоны не закладываются, то это явные признаки нехватки азота. Спасет ситуацию подкормка азотными удобрениями. An excess in the soil of copper, calcium, a violation of its acidity will lead to chlorosis of the plant.
Diseases of the variety are treated by destroying the affected parts of the bush, spraying and disinfecting the soil. The most common ones are:
- a variety of leaf spots,
- rot (gray, buds, shoots, root),
- waxy sickness
- powdery mildew,
Among the pests it is necessary to distinguish spider mites, rhododendra bugs, furrow weevils, acacia false guard. In addition, aphid and thrips can disfigure flowers and leaves. To get rid of the invasion of harmful larvae or beetles, it is necessary to treat the bush with insecticides. It is necessary to protect the plant from slugs, which can also encircle the leaves.
The root system is superficial, so the plant does not tolerate loosening, digging, as well as flooding.
The leaves are narrow, thick, leathery, glossy. The color of the foliage is dark green above, brown below with slight pubescence.
The flowers have a diameter of up to 7 cm, gathered in inflorescences of 5-10 pieces. At the beginning of flowering petals pale pink, and by the end - a dazzling white. The azalea bloom begins in May and ends in June.
The height of an adult plant is up to one meter, the span of a crown is up to one and a half meters. The annual growth for the year is about 10 cm, so the shrub is considered to be slow-growing.
The Yakushima rhododendron is an evergreen tree that will please the eye with its dark emerald foliage both in winter and summer.
Types of rhododendron Yakushimansky
Today there are several types:
Almuth - height 80 cm, white flowers with reddish speckles, crown dome-shaped.
Anushka - 2 m high, flowers are saturated-pink.
Arabella - height is 1 m, flowers are very large, red with a white middle, the crown is spherical-flat.
Astrid - height is 1 m, flowers are bright red large, funnel-shaped, the crown shape is wide-round.
Blurette - Height 90 cm, flowers violet-pink with yellow specks, slightly corrugated at the edges, crown dome-shaped.
Kalinka - height 120 cm, flowers have a pink or mauve shade.
Marrakesh - height is 70 cm, flowers are very large, white-pink with specks. Silverboarder - height 1 m, white flowers with yellowish or greenish specks, crown dome-shaped.
Fantasy - 120 cm high, the flowers are large outside pink-red, and the inside is soft-pink.
Schneekrone - height 50 cm, white or pale pink flowers, crown dome-shaped.
Edelweiss - height is 70 cm, flowers are white with reddish inclusions.
Percy Weissman - 1 meter high, flowers are pale-pink with a peach shade, at the end of flowering petals become yellow-white.
Rhododendron Yakushimansky - planting and care
This plant is different good winter hardinesstherefore recommended for cultivation in the middle zone of our country.
Best time to land of the Yakushimani rhododendron is end of aprilwhen the soil is completely warmed by the sun. You can also plant in the fall, in early September, when it is not freezing.
Azalea does not tolerate direct sunlight. Also a dangerous place for him to be open. a place subject to winds.The best location is the penumbra..
You can plant a rhododendron separate bush, and you can create a group composition. Such evergreen shrubs will decorate the garden.
Azaleas prefer loose, acidic, humus-rich soil. You can prepare the soil yourself. To do this, take two parts of peat land, two parts of coniferous land and one part of river sand. When planting at the bottom of the hole it is desirable to put a drainage (expanded clay, pebbles, sand) in order to avoid stagnation of water.
Rhododendron Yakumashinsky - hygrophilous therefore, it is important to monitor the number of waterings. Watering takes place 2-3 times a week, in dry weather it is recommended to carry out spraying.
Frost resistance - This is a characteristic feature of this plant. It is able to withstand cold weather up to - 30 C. But it should be remembered that young seedlings need to be sheltered for the winter.
Fertilizer and dressing
For proper growth, rhododendron should be fertilized 3 times per season. The first time is before flowering (20 grams of fertilizer for feeding azaleas per liter of water), the second time right after it (with the same fertilizer), the third time at the end of August (25 grams of superphosphate and 15 grams of potassium sulfate). The third dressing is necessary for ripening the bark and preventing the formation of young shoots.
The flowering of rhododendron of Yakushiman is extraordinarily beautiful, plentiful. Flowers collected in inflorescences sprinkle the entire shrub. It begins at the end of May and lasts until the end of June.
This plant does not need special pruning. But there are situations when it is important to do this, for example, to remove dead wood and dry branches.
Azalea transplantation often takes place painlessly at any age, but it should be remembered that it is impossible to disturb the earthen room to avoid damaging the root system. The best time for a transplant is spring and autumn.
There are several ways which one to choose - each gardener decides for himself.
Seeds. Seeds are planted in January-February. Sowing occurs superficially in the nutrient soil. Shoots appear during the week.
At a permanent place of growth seedlings are planted only in a year.
Cuttings. To obtain cuttings, it is necessary to cut off a twig 5 cm in size and having 3-4 internodes. Cuttings are placed in peat-sand soil. During the month rooting takes place and shoots and leaves appear.
Layering. For this method of reproduction in the spring choose the lower branch, a little incise it and immersed under the soil. Layers it is important to water and pour nutrient soil. By mid-July, the layering will take root and it can be cut off from the mother bush and transplanted to another location.
By division. An adult bush is dug out of the ground and divided into parts. Each part is planted separately. In 2-3 years the bush will fully recover and acquire its decorative effect.
The Yakushimansky rhododendron perfectly tolerates low temperatures, therefore it does not require shelter for the winter..
But young shoots in the first few years after planting should definitely be covered.
Care for adult plants in the fall is as follows:
1. The last watering should be done before the first severe frosts to prevent dehydration of the root system.
2. The fall should be filled with mulch (peat, pine needles, dry leaves) with a layer of 10-15 cm near the bush to protect small roots from the cold.
Possible difficulties in growing
- Bud fall. This is due to insufficient water. To avoid this, you need to carry out regular watering, to prevent the drying of the soil.
- Weak flowering, small leaves, red spots along the leaf veins. This is a sign of nutritional deficiencies. Applying top dressing in the form of potassium nitrate will help to cope with this problem.
- Small yellowed leaves and slow growth indicate a possible gulf.
More and more often in the gardens you can find beautiful shrubs of the Yakushiman rhododendron. Flower growers fell in love with him for its frost-resistant qualities, not very complicated care, and unique flowering.
More photos of the Yakushimansky rhododendron see below:
How to achieve lush flowering of rhododendron, you will learn from the video:
You can read other materials on the topic and learn more about azaleas / rhododendron: