Rhododendron grandiflorum katevbinsky

Rhododendron katevbinsky grandiflorum - planting and care

- landing

The optimal time for planting is spring.

When purchasing seedlings, it is important to make the right choice: you need to choose the first option from own-rooted and grafted seedlings

Azalea is a light-loving plant, but you should not choose an open place for it - the plant can burn out from the direct rays of the sun. It is better to plant it in a place protected from the wind in partial shade, for example, under the crowns of trees. Rhododendron is very fond of water, so before planting it will be useful to place the seedling in the water.

At the site chosen for planting, you need to dig a hole 50 x 70 cm. The root system does not need to be buried - it should rise 2-4 cm above the soil level, taking into account the subsequent subsidence.

- soil

Rhododendron loves fertile, fresh, slightly acidic or acidic soil. It should be loose, enriched with organic matter. Peat and leafy soil mixed with sand and rotted coniferous sawdust are suitable. Good drainage and annual mulching with peat and pine needles are essential. They will retain moisture and protect the roots from weeds and damage.

- watering

Azalea does not tolerate heat and dry weather, so in summer, abundant and deep watering is necessary. However, do not allow waterlogging and stagnation of water - its plant also cannot stand it. Watering with soft acidified water is recommended twice or three times a week.

- fertilization / feeding

It is recommended to feed young shrubs in early spring and after flowering. It is enough to fertilize mature plants once a season. The feeding dose is one bucket per root and includes rotted cow dung and decomposed compost.

Mineral fertilizers with NPK in a ratio of 2: 1: 1.5 (ammonium sulphate, superphosphate and potassium sulphate) have a beneficial effect on plant health - 30-40 g is supposed to be applied per square meter. liquid form.

After flowering, you can fertilize with a mixture of phosphorus and potassium fertilizers (2: 1) - this will have a good effect on the process of bud formation next year. However, it is better not to postpone feeding at the end of summer and later, otherwise new shoots will grow, which will freeze in winter.

- flowering

Rhododendron blooms in late May - early June and pleases gardeners with bright colors for 3-4 weeks. The diameter of the lush crown, with proper plant care, can reach two meters. After flowering, all wilted inflorescences must be removed so that they do not interfere with the formation of new buds.

- cropping

Pruning is optional - it can stunt growth and flowering. Nevertheless, if you want to give the rhododendron crown neatness, you can trim it in May. You can replace pruning with pinching.

- breeding methods

Rhododendron Katevbinsky is grown from seeds that ripen at the end of October. They adapt well to local conditions and the coloration of the resulting plants will vary. Thus, you can get multi-colored flowers and make the flower bed as diverse as possible.

You can also propagate rhododendron with semi-lignified shoots 7-9 cm long. They are cut in mid-spring and mid-summer, so that the cut is oblique. The bottom 3 leaves must be removed, leaving a tip of 0.5 cm, the remaining leaves must be cut in half.

Shoots will be planted in a substrate of 3 cm of coarse sand and 10 cm of coniferous soil. The drainage layer of 2-3 cm will be made up of pebbles and broken shards.

Detailed description of Roseum Elegans

This hybrid was obtained by the British breeder E. Waterer (Antony Waterer) in 1851. The variety was specially created for use in landscape design.The emphasis was on obtaining a delicate shade of flowers and breeding a plant that is resistant to diseases.

Flowering rhododendron roseum elegans

The hemispherical spreading crown of this rather vigorous shrub changes very much during life. Young growth is visible from afar due to its dark red color. It gradually turns green.

Roseum Elegans Hybrid rhododendron was bred specifically to resist ailments

Young branches are light green and smooth, and last year's branches are only a tone darker. Leaves are opposite, oval, glossy, leathery. In length they grow up to 10 cm, and in width up to 7 cm. At first they grow dark red, then turn green.

Flowers, collected in racemose inflorescences of 20 pieces, have the shape of a wide funnel. The color is bright pink with noticeable darker blotches at the base of the corolla. The edges of the petals are slightly wavy, and the stamens are pink-purple.

Fully opened rhododendron flowers

For your information! The inflorescences have no aroma. Flowering lasts about 20 days in June. After wilting, bolls are formed from the pollinated flowers, filled with small black seeds.

Rhododendron elegans (cultivar Roseum Elegans) belongs to the Katevbin group of rhododendrons (Rhododendron Catawbiense) of the Heather family (Ericaceae).

An evergreen shrub grows on average up to 2-4 m in height. The crown is about 1.5-2 times the height. The growth is rather slow, a 10-year-old bush does not exceed 1.5 m. The average annual growth is about 12-15 cm. The fastest growing rhododendron is up to 5 years, and then it slows down. 7 year old bush - 100% formed.

Important! The fibrous root system of the bush grows horizontally, and practically does not deepen. For this reason, the near-stem circles form wide, about 2 m in diameter

What is the difference from other types

The most important difference of the Roseum Elegance variety is its extremely high winter hardiness. Without shelter, the shrub survives at temperatures down to -32 ° C. The change of temperature is painless. In spring, when thaws can easily be replaced by recurrent frosts down to -8 ° C, shoots do not suffer from freezing of juices that have already moved to the buds. The elastic wood structure compensates for all deformations without collapsing.

Note! In Russia, the variety is successfully grown in the gardens of Eastern Siberia and the Urals - in the 3rd zone of frost resistance. At the same time, the bushes do not freeze in the 4th zone (in the Moscow region and St. Petersburg)

In Central Russia, Roseum Elegance is grown without winter shelters.

On average, the price of seedlings starts from 300 rubles. * On sale may appear under the name English Roseum with the mark "cont.", Which means the presence of a closed root system.

Landing rules

Despite the unpretentiousness of the Grandiflorum rhododendron and the ease of caring for it, some conditions must be met. An improperly selected soil composition can lead to a lack of flowering or the death of the entire shrub. If you choose the right planting site, then nothing else will be required besides watering.

Boarding time

It is necessary to plant a plant in a permanent place before flowering - in early spring after frosts or in early autumn. Rhododendrons have a shallow root system, so the topsoil should already be warmed up, and the precipitation could not harm the shrub.

Flower shoots are sensitive to drought, so the demi-season is best for transplanting.

Place and soil for planting rhododendron ketevba Grandiflorum

Rhododendron Grandiflora tolerates shade well, but it will still feel better on the south side, but without direct sunlight. Places with diffused light are also suitable, such as under trees or a canopy.

Important! When choosing a place for planting, you need to check in advance if there are any drafts. Constant winds can dry out plant shoots

Soil requirements:

• slightly acidic or acidic;
• wet;
• loose;
• rich in organic matter.

Before planting, the rhododendron can be placed in water so that it is saturated with moisture. The increased humidity of the soil and air is the key to good flowering. Therefore, it is recommended to install automatic sprinklers in the garden or to spray the shoots by hand every day.

Note! It is better to plant shrubs next to those trees that have similar soil requirements. Thus, neighbors will not take nutrients from each other.

Fruit trees can lead to depletion of the shrub, as they draw all the water out of the soil.

If precipitation often falls in the region, it is fraught with stagnation of moisture, which leads to decay of the roots. To protect an ornamental shrub, it is better to plant it immediately on a dais. In a temperate climate, a drainage layer is made in the planting pit.

To acidify the soil, you can mix several types of soil: garden, peat, overripe coniferous, clay, add sand. Sand and clay should be no more than 20% to maintain breathability.

How rhododendron Grandiflorum blooms

Seedling preparation

It is best to use a seedling that is three years old, but the possibility of transplanting younger or older specimens is not excluded.

Before planting, the shrub is dipped in a container of water until air bubbles cease to emerge. Long roots can be cut, the rest can be simply spread out.

Important! When planting, the root neck of the Katevba rhododendron Grandiflorum should remain above the ground

Fertilization

Rhododendron Katevbinsky Grandiflora absorbs many nutrients. On poor soils, its leaves will become pale and thin, and very few flowers will appear during the flowering period.

To avoid the above, from the beginning of spring until the end of flowering, the plants are fed. This is necessary for both young and adult shrubs. The last feeding is carried out when the bush has completely bloomed and new shoots begin to form.

Rhododendron Catavbiens Grandiflorum are suitable for:

• organic fertilizers, in particular, semi-rotten cow dung, diluted in water in a ratio of 1:15;
• horny flour;
• sulphate calcium and magnesium;
• potassium nitrate.

At the beginning of spring, nitrogen preparations are introduced into the soil, in June, compositions with potassium and phosphorus, in July, nitrogen is excluded.

Note! To preserve moisture and nutrients in the soil, the trunk circle of the shrub is mulched with needles

Main varieties

Often the name of this flower contains the additional word "mix". This is due to the fact that this variety includes several species that differ in the color of the buds. Let's take a look at the most popular subspecies.

Lilac

This subspecies belongs to the large-flowered species. Very large inflorescences with wide petals are formed on the stem. They are colored pink. A plant that grows up to 90 cm in height can safely winter in the garden.

White

It is also a large-flowered species that forms buds of an unusual color. Mostly the color of the petals is dazzling white. But sometimes their middle has greenish blotches.

Yellow

It is an early variety that also produces fairly large inflorescences. They are spherical and yellow in color. Active flowering occurs in September.

Lime

It is a bush plant. Its buds are characterized by an unusual color: the petals are white-light green, and at the edges they are painted in a greenish-lemon shade. Outwardly, the flowers are very similar to the Brasil subspecies.

Vip

It is a hybrid variety that looks like a compact bush. The plant forms many large and double inflorescences. The color of the petals is also unusual here: the pale pink background is separated by purple-violet veins.

Chrysanthemum of this species forms large purple buds. Differs in a long flowering period.

Pink

This plant is known for its beautiful large pink inflorescences.A distinctive feature of this species is the ability of cut buds to maintain freshness for a long time.

Care features

To grow a beautiful flower, you need to organize optimal conditions for it, both in the house and in the garden bed.

The following care is needed for the zemble chrysanthemum:

• watering is performed 2-3 times a week. If the weather is hot outside, then it is necessary to spray the leaves with warm spring water;
• during the period of active plant growth (spring), the flower should be fertilized with mineral complex fertilizers. You can also feed chrysanthemums with potash, nitrogen and phosphate fertilizers. During the flowering period, it is better to add potash, at the stage of bud formation - phosphate, and for forcing the leaf mass - nitrogen fertilizing;
• to form a beautiful bush, it is necessary to pinch young shoots. All dried leaves, as well as buds, must be removed so that they do not spoil the appearance of the flower;
• the lighting should be good. The minimum duration of lighting is 5 hours per day. It is better not to place indoor varieties in direct sunlight;
• Chrysanthemum transplant is carried out once every 2 years. In this case, each time the pot should be chosen a larger volume;
• when growing a flower in an open field, mulch the earth with foliage, sawdust or grass. This will trap moisture in the soil and reduce the frequency of watering.

When growing chrysanthemums in the garden, remember that this flower is susceptible to attacks by pathogenic microflora (for example, the causative agent of powdery mildew), as well as parasites (worm, common aphid). Therefore, plantings need to be periodically sprayed with protective solutions. After the end of the flowering period, the bushes are cut to the very root and placed in a dark place where the temperature is + 10 ... + 15 ° C. The chrysanthemum should stay here for 30-40 days. During this dormant period, the plant will recover and form new shoots along with peduncles.

In general, caring for this variety is practically no different from other varieties. Therefore, this flower can be safely attributed to unpretentious species that successfully take root both on a flower bed in the garden and on a sunny windowsill in an apartment. As you can see, caring for a garden or room chrysanthemum earthbla is not difficult. But with the right content, this flower will delight you with a beautiful and long flowering.

Planting and leaving

Planting and care play an important role in growing a plant, as it contributes to its saturation with all the necessary nutrients (proper feeding) and protects it from unbearable weather conditions in the form of sultry heat or wind.

Boarding time

It is recommended to plant the plant either in the spring after the end of the frost, or at the beginning of autumn. In this case, the top layer of the soil must be warmed up. The autumn-spring period is also suitable for transplanting.

Choosing a place and soil for planting

The evergreen shrub should be planted in shaded areas, but away from drafts and dry winds. The ideal area is a plot near a fence or tall trees. Its best neighbors can be larch, oak, apple, pear, pine.

The soil should be acidic or slightly acidic, loose and moist. At the same time, it is advisable to install an automatic irrigation system on the site.

Seedling preparation

It is recommended to use a seedling that is 3 years old. Before planting, the shrub is dipped in water and kept until air bubbles stop appearing on the surface of the container. It is advisable to prune long roots.

Watering rules

The plant does not tolerate heat and drought well, so it must be watered thoroughly and every day. But waterlogging and stagnation of water should also not be allowed. A couple of times a week, it is useful to water rhododendron with soft, slightly acidic water.

Fertilization

The plant absorbs many nutrients, therefore, in soils with a poor mineral composition, its leaves will be thinned and faded.

Therefore, with the onset of spring and until the end of the flowering period, the rhododendron is periodically fed. This is required for young and adult shrubs. So, the plant is suitable:

• Organic fertilizers - rotted manure diluted with water in a ratio of 1:15.
• Magnesium and calcium sulfate.
• Potassium nitrate.
• Horny flour.

At the beginning of spring, the soil is fertilized with nitrogen preparations, and in June - with potassium-phosphorus preparations. In July, nitrogen must be completely eliminated.

Planting and leaving

Hybrid rhododendron Roseum Elegans is very picky about the composition of the soil, lighting and irrigation regime.

Landing

Planting begins with the preparation of soil mixture for blooming exotic plants. The soil must be loose, light, not retain moisture and not settle. At the same time, it should contain a maximum of nutrients (but not mineral composition). The soil, which will promote active growth and flowering, must be slightly acidic.

Correct fit is the key to success

Note! This indicator must be monitored during watering. If there is a lack of acidity, it is permissible to add citric, acetic or oxalic acid to the water (at the rate of 3-4 g per 10 l)

Composition of soil for Roseum Elegance in equal parts:

• leafy land;
• sour high-moor peat;
• fallen needles;
• pine or spruce bark (crushed and partially decomposed);
• sand.

Important! Fresh sawdust, bark or wood residues are not allowed in the soil for planting rhododendron. After soil preparation:

After soil preparation:

1. A hole should be dug up to 70 cm deep.
2. At the bottom, lay out a thick drainage layer of broken brick or large expanded clay.
3. Cover the drainage layer with soil mixture and sprinkle with water or fertilizer.
4. Make a small hill of earth and place a seedling on it.
5. The roots must be straightened in the direction of growth.
6. Sprinkle with the remaining earth carefully, without damaging the roots. Squeeze the soil.
7. The root collar should protrude 2-3 cm from the ground.
8. A deepening is made around the seedling for watering, and inside the soil is necessarily mulched with pine bark, needles or peat.

The best time to plant young plants is May-June.

Important! Seedlings with a clod of earth tolerate planting well in other months until late autumn

Care

For growth and flowering, the following conditions must be taken into account:

• the temperature range for comfortable growth is from −15 ° С to 20 ° С. The frost resistance of the shrub is up to 27 ° C, it can also withstand summer heat up to 30 ° C;
• spraying the bush is best done in the evening after a hot day. For these purposes, a regular watering hose will do;
• water in summer is a constant companion of flowering shrubs. Watering is needed abundant. On average, for an adult specimen, the rate of one watering will be 3-5 buckets of water. During the autumn cold snap, watering is minimized so as not to overcool the surface roots of the bush;

To form the crown, as well as stimulate flowering, the shrub needs pruning three times a year.

• as top dressing, organic matter and mineral fertilizers are needed, which should be applied alternately every two weeks during the period of flowering and active growth. Any alkaline substances are contraindicated for the soil (soapy water, alkali, ash, etc.);
• spring pruning serves as a sanitary one, it is necessary to remove all damaged branches after wintering, and also to form the crown of the future bush. In the summer after flowering, it is necessary to cut off all wilted inflorescences. In the fall, the shrub is prepared for wintering by removing too long shoots, as well as branches thickening the bush.

Preparing for winter

It is necessary to protect the ends of the branches from frost. To do this, use lutrasil or spandum. Covering materials will be protection from the first bright rays of the spring sun. To protect the roots from freezing rains, it is better to mulch the soil.

Growing conditions for rhododendron Purpureum Grandiflorum

Rhododendron hybrid Grandiflorum is grown in single or group plantings. It is undesirable to plant shrubs next to trees with the same superficial root system. Stronger plants will inhibit the rhododendron.

Evergreen shrubs need protection from drying winds and drafts as well as the hot midday sun. To do this, next to the Katevba rhododendron, hedges are created or shrubs are planted in the partial shade of structures and conifers.

For the successful cultivation of evergreen rhododendron Grandiflorum, acidic soils are needed. In the absence of such soil on the site, it is created anew in a large planting pit or, laying a whole area to create a heather corner. Pine litter gives an acidic reaction: cones, branches, needles. And also moss and top peat, which has a red color. Such a substrate will be constantly needed during the cultivation of rhododendron.

Reproduction methods

1. Seeds. Deciduous rhododendrons reproduce by seed. Sowing is done in early spring. Germinated in a cool room at a temperature of 12-15 ° C. The seeds are sown in a sandy-peat mixture, slightly pressing them. Moisturize regularly. When the first leaves appear on the sprouts, they are dived and placed in a small greenhouse, ventilated 2 times a day. Such seedlings bloom only for 5-6 years of cultivation.
2. Cuttings. This species can also be propagated by cuttings. In the middle of summer. When the buds begin to form, cuttings 7 - 9 cm long are cut, leaving 3 - 4 leaves on them.

When grafting, leave leaves at the top of the cutting. Before planting, the cuttings are dipped for a day in a solution with any root growth stimulant. Then, for rooting, they are planted in a ready-made special substrate. Provide warm air circulation from below - usually raise containers with cuttings on supports or on a bench.

Rhododendron seedlings take root very slowly. After rooting, such seedlings should not be immediately planted in open ground. They should overwinter in a cellar or a cool room with a temperature of 2 - 5 ° C. In the southern regions, it can be planted immediately in open ground, while a dry shelter is required, the seedlings are still too weak and fragile to withstand wind and frost.

Layers. The easiest way to propagate deciduous rhododendron is by layering. The procedure is carried out in early spring using last year's shoots. They are dug in and fixed with wire, slingshots or hooks on the ground. The earth is moistened regularly all summer, watering the growth stimulant solution once every 3 to 4 weeks for better rooting. Young shoots are separated next fall. Flowering will come in 2 years after the separation of the seedlings.

Watch a video about the methods of breeding rhododendrome:

Description

Daurian rhododendron is a plant belonging to the heather family, which is why our compatriots often call it wild rosemary. The second unspoken name is rosewood. This is how the name itself is translated from Greek. This is explained by the presence of bright pink flowers, but there is no similarity with an ordinary garden rose. This plant is classified as a wild plant, although with proper cultivation it can be rather easily grown on your site. This is an evergreen shrub, up to two meters high, and with leaves in an amount of 25 to 40 pieces.

The leaves themselves are about 3 cm wide and up to 5 cm long. They are dense, rather fleshy and pleasant to the touch. Their color changes depending on the season: the closer to winter, the darker they become, and in early spring their color is light green with a slight gloss. With the arrival of cold weather, the plant does not have time to shed all the leaves, so some of them overwinter right on the stems. Dahurian rhododendron flowers, as a rule, are painted pink or lilac, their appearance is very similar to small and beautiful bells. In some varieties, the flowers themselves are painted in white tones.They grow in clusters of 15–20 pieces in one brush. The size of each flower is about 4 cm. Flowering on average lasts from early April to late May.

In the wild, this flower grows mainly in temperate climatic latitudes. It can often be found in the steppes of Asia, Mongolia and in Transbaikalia - Dauria. After the end of flowering, in place of the flowers, fruits appear in the form of a small seed box. The plant can withstand severe frosts - up to 45 degrees below zero, and its average life is 50 years.

Not all varieties of Daurian rhododendron are suitable for growing at home. Some of them have poisonous pollen and are often the cause of severe allergies.

Beekeepers should also grow this plant with extreme caution, since honey made from its pollen has strong hallucinogenic properties.