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Rosa x polyantha 'Sans Contrainte' 'Anne Roumanoff' - Shrub Rose

Rosa x polyantha Sans Contrainte® Anne Roumanoff® korburox
Korburox

4,0/5
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Thanks to Jenny, who prepared the order, and Katy from the shipping department, the rose bush I received looks healthy. I have planted it near the 'Schöne Koblenzerin' variety and now I'm waiting to see how it develops... whether it takes root or not.

Thierry, 24/08/2022

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More information

ADR
A bright and compact little rose bush, flowering from June to October and disease-free. This lovely Kordes creation produces adorable little semi-double roses, with a velvety red colour and white reverses, that cover beautiful shiny foliage of vivid green. Forming a very tight little bush, 'Anne Roumanoff' is perfect in borders, flower beds, or even in a pot on the terrace. It is an effortless rose bush, which obtained the highly selective German ADR label in 2009 for all its qualities.
Flower size
4 cm
Height at maturity
50 cm
Spread at maturity
50 cm
Exposure
Sun
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time January to May, September to December
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Flowering time June to October
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Description

The 'Anne Roumanoff' Sans Contrainte rose bush is part of a series of particularly compact and floriferous roses created by German rose breeder Kordes. This lovely creation meets the requirements of the highly selective German ADR label, which rewards the most disease-resistant varieties, robust and hardy, easy to grow anywhere and by any gardener. 'Anne Roumanoff' produces tirelessly adorable small semi-double bicolour roses, red with white reverses, set against a beautiful lush green foliage, transforming this small bush into a radiant cushion throughout the growing season. With its small size and dense habit, this bright rose bush is perfect in borders, flower beds or even a pretty pot on the terrace.

The flowers of Rosa Anne Roumanoff (korburox) are gathered in terminal clusters and come from the polyantha rose, an old hybrid resulting from Rosa multiflora and Rosa chinensis. This excellent German variety was introduced in 2011 by German rose breeder Kordes. The 'Sans Contraintes' range brings together very repeat-flowering, floriferous roses capable of adapting to difficult growing conditions and highly resistant to diseases and pests. It requires little maintenance other than simple pruning in March. All of them hold the ADR label.

This well-behaved small bush has a bushy and branched, very dense habit. It will reach approximately 50 cm (20in) in all directions in a few years. The 4 cm (2in) semi-double flowers, gathered in clusters of 5 to 6 flowers, are continuously produced from June to October if the soil remains moist. The flower buds in this 'Anne Roumanoff' variety are pale white-pink, more or less edged and splashed with pink-red. They open into beautifully formed, turbinate, bicolour corollas with a velvety red-pink, each petal revealing its almost white reverse. This disease-resistant variety develops elegant, well-furnished foliage in a vibrant, glossy green. Its stems are spiny.

The 'Anne Roumanoff' rose bush adapts to all soils that are not too dry and to all climates, which allows it to be welcomed without reservation in many regions. It works wonders as a border, in a flower bed, in a pot on the terrace, or on a large slope where it will cover the ground. It can also be planted in groups of 3 plants arranged in a triangle in the centre of a small flower bed. Plant it in mass or with pink (Maman Turbat, The Fairy) or white (Swany, Marie Pavie) ground-cover roses to highlight the path of a pathway or the beds of light or opulent shrubs and perennials. It can be paired with perennial geraniums (Geranium Blue Cloud, Anne Folkard, Nimbus, Orion), bellflowers (lactiflora, rapunculoides), catmints, foxgloves, or other perennial salvias. It blends perfectly with pink or white flowering shrub roses in a romantic garden.

Rosa x polyantha 'Sans Contrainte' 'Anne Roumanoff' - Shrub Rose in pictures

Rosa x polyantha 'Sans Contrainte' 'Anne Roumanoff' - Shrub Rose (Flowering) Flowering
Rosa x polyantha 'Sans Contrainte' 'Anne Roumanoff' - Shrub Rose (Plant habit) Plant habit

Plant habit

Height at maturity 50 cm
Spread at maturity 50 cm
Habit Irregular, bushy
Growth rate fast

Flowering

Flower colour red
Flowering time June to October
Inflorescence Corymb
Flower size 4 cm

Foliage

Foliage persistence Deciduous
Foliage colour green

Botanical data

Genus

Rosa

Species

x polyantha

Cultivar

Sans Contrainte® Anne Roumanoff® korburox

Family

Rosaceae

Other common names

Korburox

Origin

Cultivar or hybrid

Product reference888731

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Planting and care

The Kordes 'Sans Contrainte' roses are easy to grow in ordinary garden soil that has been well-prepared, loosened, enriched, and not too dry in summer. They thrive in a sunny position that is sheltered from the scorching midday rays and strong winds. To plant them in a pot, work the soil to a depth of 25 cubic cm, crumble the soil well, and place a base amendment, such as blood, fish, and bone, at the bottom of the planting hole. Position the plant without its pot by covering the top of the root ball with 3 cm (1 in) of soil, fill in, and water generously to remove air pockets. In dry weather, it is necessary to water regularly for a few weeks to facilitate root development. Also, remember to provide your rose with a special rose fertilizer that stimulates plant flowering. They are easy to cultivate in pots with good horticultural soil, regular watering, and fertiliser applications.

Roses may develop unsightly spots at the end of summer, but this is a natural occurrence and doesn't harm the rose's growth.

 

Planting period

Best planting time March, October
Recommended planting time January to May, September to December

Intended location

Suitable for Meadow
Type of use Border, Edge of border, Container, Slope
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 3 per m2
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Loose, deep soil.

Care

Pruning instructions In the spring, when the frosts have passed, cut branches to 3-5 buds depending on their strength. During the autumn and winter, remove any dead wood.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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