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Rhododendron Tortoiseshell Orange

Rhododendron Tortoiseshell Orange
Rhododendron

4,8/5
7 reviews
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Blossomed the year of delivery then Passed away despite all my attention. And your advice Very disappointed.

Dominique, 22/02/2022

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This plant carries a 24 months recovery warranty

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Value-for-money
A Rhododendron with a different look, truly flamboyant in spring! With a rounded and compact habit, the evergreen bush blooms in loose clusters ranging from pale yellow to orange-red, with a touch of salmon pink. This old English variety thrives in a heathland bed or in a large container, in partial shade or filtered sunlight.
Flower size
5 cm
Height at maturity
1.20 m
Spread at maturity
1 m
Exposure
Partial shade
Hardiness
Hardy down to -15°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 June
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Description

Rhododendron 'Tortoiseshell Orange' is an ancient English hybrid with a unique personality. Aside from its flowering, it is instantly recognizable by its beautiful evergreen foliage. The particularly narrow and elongated leaves are a very dark green. At the end of May, it stands out with its gently flamboyant flowering: its large flowers, borne in loose clusters full of charm, evolve from pale yellow to orange-red, with shades of pink and salmon. With its moderate growth and attractive character all year round, this Rhododendron is one of the most original! Plant it in an ericaceous bed or a large container, in partial shade or dappled sunlight.

 

Rhododendrons are plants from the heather family, preferring predominantly lime-free, acidic soils and humid climates. 'Tortoiseshell Orange', obtained in England in 1947, is a cross between the variety 'Goldsworth Orange' and the botanic species Rhododendron griersonianum.

'Tortoiseshell Orange', with its fairly slow growth, naturally forms a rounded and upright bush measuring 1.2 meters (4 feet) in height and 1 meter (3 feet) in width at 10 years old. The shrub shows a fairly regular, rounded, and compact silhouette. Its evergreen leaves, a very dark green with a slightly bluish hue and a satin finish, are closely lanceolate in shape and provide good coverage. The flowering of this variety is quite late, typically starting at the end of May. Clustered in loose groups of 5 to 12 at the ends of the branches, beautiful large flowers with slightly undulate edges bloom. The color ranges from pale yellow to soft orange-red, with various shades of warm pink, and the center of the flowers is more orange.

 

The 'Tortoiseshell Orange' Rhododendron is an attractive, hardy down to -15°C (5°F), and easy to grow shrub as long as the conditions suit it, in terms of exposure, soil, and climate. "Rhodos" are as exclusive as they are ornamental shrubs that thrive admirably in temperate climates in acidic soil. When they have a modest stature like 'Tortoiseshell Orange', they allow you to beautifully adorn a small semi-shaded space in the garden, as well as the terrace or balcony. For example, it can be planted alongside camellias, azaleas, deciduous magnolias, and pieris, which appreciate the same growing conditions and complement their spring flowering. Japanese maples bring lightness to their sometimes massive silhouettes. Hydrangeas, on the other hand, make good companions for summer and autumn. Spring or summer flowering bulbs (tulips, oriental lilies), as well as ferns, heucheras, and hostas, will occupy the foreground of large ericaceous bed plantings. Container cultivation requires regular watering with non-lime water and specific fertilizer for ericaceous plants. Large Rhododendrons, on the other hand, are absolutely stunning in a hedge.

Rhododendron Tortoiseshell Orange in pictures

Rhododendron Tortoiseshell Orange (Flowering) Flowering
Rhododendron Tortoiseshell Orange (Foliage) Foliage

Plant habit

Height at maturity 1.20 m
Spread at maturity 1 m
Habit Irregular, bushy
Growth rate slow

Flowering

Flower colour salmon
Flowering time June
Inflorescence Corymb
Flower size 5 cm
Bee-friendly Attracts pollinators

Foliage

Foliage persistence Evergreen
Foliage colour dark green
Foliage description Narrowly lanceolate leaves, with a leathery texture, evergreen.

Botanical data

Genus

Rhododendron

Cultivar

Tortoiseshell Orange

Family

Ericaceae

Other common names

Rhododendron

Origin

Cultivar or hybrid

Product reference8427311

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Planting and care

Plant the 'Tortoiseshell Orange' Rhododendron in a semi-shaded position, protected from cold and drying winds, in a moist, humus-rich, and light soil, with a tendency to be acidic or neutral. Like all plants of the heathland, it cannot tolerate lime-free soils or heavy soils that become waterlogged in winter. If the soil remains moist in summer, this rhododendron can also tolerate exposure to non-scorching sunlight. Avoid planting at its base, as its shallow roots do not tolerate competition from other plants, especially for water resources.

Dig a hole three times larger than the pot. Soak the root ball in lime-free water and plant the bush at the collar level, in a mixture composed of leaf compost, gravel or pumice, and loam. Water generously and keep the soil moist in summer. Azaleas and Rhododendrons have a shallow root system. Therefore, they are susceptible to long periods of drought. That is why it is advisable to enrich the soil with humus and provide abundant watering during dry periods. Moreover, this root system is not very strong, so it is essential to lighten heavy soils with draining materials (gravel, pumice, clay balls) at planting. Apply mulch of shredded pine bark around the base of the bush every spring to maintain soil moisture and acidic pH.

Maintenance consists of removing faded flowers in summer and removing dead branches. Azaleas and Rhododendrons can sometimes be attacked by weevils that eat the edges of the leaves and rootlets, as well as the infamous "rhododendron beetle," which seldom causes severe damage. Effective biological solutions are available today against weevils. Yellowing of the leaves (chlorosis) in Rhododendron indicates poor assimilation of iron in the soil and can lead to premature plant death. While limestone is often the cause, poorly drained soil or deeply planted root balls 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
Type of use Border, Free-standing, Container
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 1 per m2
Exposure Partial shade
Soil pH Acidic
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Humus-rich or peaty, or even sandy, fertile 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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