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Rhododendron Easydendron English Roseum Inkarho

Rhododendron Easydendron ® INKARHO English Roseum
Rhododendron, Azalea

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A bushy, hardy and heat-tolerant hybrid rhododendron. Its flowering in large lilac clusters usually blooms in early June, on beautiful glossy foliage. This magnificent evergreen bush impresses with its robustness and lush appearance throughout the year. Thanks to its inkharo grafting, it can be enjoyed in a greater variety of soils, the type of soil appreciated by a hydrangea, even loamy or slightly clayey and chalky.
Flower size
10 cm
Height at maturity
2.10 m
Spread at maturity
2.10 m
Exposure
Partial shade, Shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil
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Best planting time March to April
Recommended planting time February to May, September to October
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Flowering time May to June
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Description

Rhododendron Easydendron English Roseum Inkarho is a reliable and robust variety, appreciated and awarded. It has been grafted with "Inkharo" to show improved tolerance to slightly limestone or clayey soils. It forms a rounded bush of beautiful stature with elongated, shiny green leaves, boasting a spring flowering so abundant that its foliage is almost hidden. Its large, lilac pink flowers are speckled with orange-brown. Gifted with good cold resistance, but also heat resistance, a quality not so common in these plants, this selection once reserved for ericaceous soil beds can now be planted in a wider variety of conditions, even in slightly limestone or heavy soils. With its lush appearance, this large bush creates superb screens at the back of flower beds or majestic evergreen hedges.

Rhododendrons are plants from the ericaceae family, just like heathers. The history of Inkharo Rhododendrons, somewhat revolutionary plants, began in Germany over 20 years ago. The discovery of a rhododendron naturally growing in a chalk quarry led to the consideration of grafting different varieties onto its extraordinary root system. Shrubs obtained by this method tolerate a wide range of soils with a pH ranging from 4.5 to 7.5, provided they are loose, fertile, moist, and not excessively calcareous. In summary, a soil suitable for hydrangeas. The English Roseum cultivar forms a large bush with a slightly spreading rounded habit, as wide as it is tall. Its growth is relatively fast, reaching an average of 2 m in all directions (sometimes up to 2.50 m in span) in good conditions. The branches are abundantly covered with beautiful glossy dark olive green, narrow, slightly arched, oblong-shaped evergreen leaves. The remarkably abundant flowering occurs from late May to mid-June. The large flowers are grouped in large spherical clusters, with up to 10 funnel-shaped flowers. The colour of the flowers at blooming is a rich pink. Over time, they take on a more mauve hue and reveal a bronzed speckled throat occupied by long curved pink stamens.

Rhododendron English Roseum Inkarho is a very hardy plant, down to approximately -25°C. It will thrive in partial shade in moist, humus-bearing, loose soil. In the garden, with its abundant and delicate flowering, it easily dresses up a shaded area of the garden, alongside Ferns, blue or variegated hostas, Pieris, shrubby Heathers, Kalmias, Azaleas, and Japanese maples, or other rhododendrons from the same group to create superb patchworks of textures and colours. It is versatile and you can also plant it alongside many other flowering shrubs, not necessarily acid-loving: hydrangeas, autumn camellias. Japanese Anemones will also be good companions, as well as bugbanes and foxgloves, in the undergrowth. In a large garden, it could even form a majestic hedge along a grand avenue, alongside other large rhododendrons.

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Plant habit

Height at maturity 2.10 m
Spread at maturity 2.10 m
Habit Irregular, bushy
Growth rate slow

Flowering

Flower colour mauve
Flowering time May to June
Inflorescence Corymb
Flower size 10 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour dark green

Botanical data

Genus

Rhododendron

Cultivar

Easydendron ® INKARHO English Roseum

Family

Ericaceae

Other common names

Rhododendron, Azalea

Origin

Cultivar or hybrid

Product reference19145

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Planting and care

Plant the Rhododendron Easydendron English Roseum Inkarho in a semi-shaded location, protected from cold and drying winds, in moist, loose, fertile soil. It should be slightly calcareous, neutral, or acidic, a soil suitable for a hydrangea. Dig a hole three times larger than the pot. Soak the root ball in water and plant the bush at the collar level, in a nourishing mix composed of leaf compost, gravel or pumice, and loam or topsoil, as Inkarho Rhodos are nutrient-demanding plants. Water generously and keep the soil consistently moist. Azaleas and Rhododendrons have a relatively shallow root system. As a result, they are sensitive to long periods of drought. Therefore, soil enriched with humus and abundant watering during dry periods are recommended. Apply a mulch at the base of the bush every spring to maintain soil moisture while keeping a slightly acidic pH. Maintenance involves removing faded flowers and dead branches.

Azaleas and Rhododendrons can sometimes be attacked by vine weevils that eat the edges of leaves and rootlets, as well as by the infamous "rhododendron borer" which does not often cause severe damage. There are effective natural solutions against vine weevils. Leaf yellowing (chlorosis) in Rhododendrons indicates poor iron assimilation in the soil and can lead to premature plant death. While limestone is often the cause, poorly drained soil or a deeply planted root ball can also explain the phenomenon.

Planting period

Best planting time March to April
Recommended planting time February to May, September to October

Intended location

Suitable for Woodland edge, Undergrowth
Type of use Back of border, Free-standing, Hedge
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Partial shade, Shade
Soil pH Neutral, Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Rich and well-drained

Care

Pruning No pruning necessary
Soil moisture Moist soil
Disease resistance Good
Overwinter Can be left in the ground

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