Gorgeous fragrant rhododendron Blumbux (Bloombux) - photo, description, nuances of cultivation

Gorgeous fragrant rhododendron Blumbux (Bloombux) - photo, description, nuances of cultivation

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Rhododendron Blumbux is a densely crowned shrub with an abundance of flowers. Differs in high ability to survive.

We will tell you in detail about this variety and the features of caring for it. You will learn the characteristics of this plant, the history of its origin, the nuances of flowering, as well as reproduction, diseases and pests.

Detailed characteristics

Rhododendron Bloombox, or, as it is sometimes called, Boombox, belongs to the Heather family. This plant is the result of breeding work on dwarf azaleas, the variety was bred in Germany.

Low evergreen shrub, reaches a height of only one meter... The crown spreads out a meter in width. The branches grow quickly. The variety is distinguished by narrow oblong leaves up to 5 m in length, which grow densely on a branch.

The shrub begins to bloom in the first month of summer, flowers last for a month. The petals are white-pink, wavy, bell-shaped or bowl-shaped in shape. The diameter of the bud is 4-5 cm.

This variety can withstand frost... With proper care, including shelter for the winter, the shrub grows in spring without loss. The root system is flat and shallow.

The history of the occurrence of Bloombux rhododendron

The first time Blumbux appeared in Germany in 2000. The hybrid was obtained by crossing the following species: hirsutum and micranthum.

The official permission to sell the variety in Germany appeared only in 2014.

What is the difference from other species?

The main characteristic feature of the Blumbux rhododendron is the exuding of a subtle aroma when wiping the leaf plates. Also the variety is absolutely unpretentious to the type of substrate - develops well in soil with both moderate acidity and neutral.

You can find out about the types of azaleas here.

Varieties - description, photo


Bloombux rhododendron micranthum is a dwarf evergreen shrub that grows to a height of only 45-50 cm. The crown grows compact, dense, easily cut into a round shape.

The leaf plates are small, with a sharp end, dense to the touch, with a rich green hue. Flowers on the branches grow densely, when flowering, form a round inflorescence. Due to the flower balls, the foliage is almost invisible.

The variety is able to withstand frosts down to -23 degrees.


When and how does it bloom?

Flowers bloom at the very beginning of summer... The rich foliage appears first, and only then the buds. Small, but densely planted flowers form a spherical crown of a pale pink hue. Flowering lasts 3-4 weeks.

reference! Even young shrubs bloom every year.

Features of care during this period

It is recommended to replant Bloumbux before flowering.... The best time is late April-early May. During this period, the soil will warm up enough and will not create a stressful environment for the plant.

After flowering, dry flowers are cut off, otherwise they will take away the strength from the plant.

What if it doesn't bud?

The most common reason for the lack of flowering is the lack of trace elements in the soil. It is recommended to feed the rhododendron with liquid complexes - they are sold ready-made in flower shops.

Also the cause may be fungal diseases or pest attacks... Examine shoots and leaf plates for damage.

Step by step care instructions

Seat selection

Blumbux is considered to be a fairly hardy variety. The shrub can easily grow in the open sun, but the plant needs to be watered and shaded during the hot sun hours. This will ensure proper maintenance and longevity of the variety.

but the most suitable place for growing is partial shade and diffused light... It is recommended to plant shrubs close to higher bushes - thujas and cypresses. They will create a natural day for the shrub and protect it from the scorching sun rays.

What should be the soil?

The main conditions for the soil are air and water permeability, the presence of a drainage layer. The substrate consists of the following components:

  • coniferous or leafy land;
  • sand;
  • peat land.

These components are taken in equal amounts.

Also perlite is placed in the substrate, which retains moisture, and a drainage layer of pebbles, crushed stone or pieces of bark is laid on the bottom.


You can plant rhododendron twice a year - before and after flowering (April-May or September-October).

Bush planting algorithm:

  1. dig a hole, the depth and diameter of which is twice the volume of the root system;
  2. put a drainage layer on the bottom (10-15 cm);
  3. pour a little of the prepared substrate (one third of the total volume);
  4. put the bush in a hole, gently straighten the roots and lightly press into the soil;
  5. while the rhizome does not need to be deepened;
  6. cover with ready-made soil to the root collar, tamp, but not tightly;
  7. water the bush abundantly, after shrinkage, add more soil;
  8. put a layer of mulch in 5-6 cm (put dry foliage, sawdust and needles).

Important! For a young plant, it is recommended to install a temporary support.


  • In winter, the Boombox is able to withstand frosts down to -22-25 degrees.
  • In summer, the plant can survive the heat of + 28-30 degrees, but subject to abundant watering.

The optimum temperature for the development of a bush is + 12-15 degrees.


In summer, rhododendron needs daily abundant soil moisture. The soil should be moistened 15 - 20 cm deep... Make sure that the ground does not turn into a swamp. Excessive flooding can harm shrubs.

It is best to water the plant in the early morning before sunrise or in the evening after sunset. The leaf plates are also irrigated.

In the autumn, the bush is also watered so that the roots gain moisture before wintering. With the onset of cold weather, watering is carried out only after the top layer of the soil has completely dried out.

It is recommended to use settled water for irrigation., the rain is best. One bush takes about 8-9 liters of water.

Top dressing

The main requirement for the soil is a large amount of humus and organic fertilizers. Immediately after planting, the soil is fed with argmin, this helps to strengthen the young seedling.

Every two weeks, peat is introduced into the substrate - this will prevent it from depletion. To ensure the rich color of the foliage, an iron chelate solution is added under the shrub.

reference! For young bushes, the fertilizer dose should be reduced.


Bloumbux lends itself well to pruning. The bush can be rounded or square.... After the "haircut", the foliage does not turn yellow and continues to grow abundantly.

Do not forget to remove excess root processes. Pruning is carried out only after flowering, otherwise there is a risk of damaging the flower buds. By strictly following these recommendations, you will provide not only proper care for your shrub, but also an outwardly attractive appearance.


Change the planting site 15-20 days after flowering or before it starts... It is recommended to prune the flower buds immediately after transplanting, as flowers can deprive an already weak plant of strength.

The transplant procedure is carried out every 5-6 years.

Step-by-step instructions on how to reproduce

The variety propagates by layering or cuttings.

Reproduction by cuttings is carried out at the end of summer as follows:

  1. prepare cuttings 6-7 cm long;
  2. shoots are soaked for half a day in a growth stimulator;
  3. after that, the cuttings are planted in sandy peat soil and covered with a film;
  4. a month later, the cuttings take root;
  5. with the arrival of autumn, the cuttings are taken to a cool room (for example, a basement), the seedlings are stored there until the arrival of spring;
  6. in April and early May, seedlings are planted in open ground.

Reproduction by layering is even easier:

  1. a branch is selected that grows low to the ground;
  2. an incision is made on the selected stem;
  3. a branch is placed in a small hole, fixed with wire and covered with earth;
  4. after rooting, the bush is separated.

Azaleas come in a variety of colors and types. You can learn about Indian, as well as about Mix variety and about growing bonsai from azalea from our materials.

Diseases and pests

  1. Boomboxes can be attacked by:
    • mealybug;
    • rhododendron bug;
    • weevil.

    To destroy them, the plant is sprayed with insecticides - "Aktara" or "Fitoverm". In case of severe damage, the treatment is carried out several times with an interval of 7-10 days.

  2. Also, garden snails and slugs can attack the bush. They get rid of them mechanically.
  3. Rhododendron is affected by spider mites. To combat it, the bush is sprayed with soapy water or fungicide. In most cases, one treatment is enough to save the bush.

Rhododendron Blumbux is an exotic plant, but at the same time it is absolutely unpretentious to care for. That is why the shrub has become so popular among flower growers.

Watch the video: Caring for Hydrangeas (May 2022).