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Rosa Decorosiers Opalia 'Noaschnee'

Rosa Décorosiers Opalia 'Noaschnee'

4,5/5
29 reviews
6 reviews
3 reviews
1 reviews
2 reviews

Small but robust plant that quickly recovered after being planted.

Marie, 01/04/2024

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This plant carries a 24 months recovery warranty

More information

ADR
A pure white semi-double flowering landscape rose that combines qualities: a truly early, particularly long and abundant flowering from May-June to October, exceptional disease resistance, beautiful foliage that persists in mild climates, and easy maintenance. Plant it in a bed, along a pathway, or in a large pot. This excellent variety has received the highly selective German ADR label.
Flower size
5 cm
Height at maturity
70 cm
Spread at maturity
40 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -23°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time January to March, November to December
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Flowering time May to October
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Description

The Decorosier OPALIA rose bushwith a coat of white flowers from springblooming until autumn, brings a lot of light to any setting. Its semi-double corollas of pure white blend wonderfully with all the flowers in the garden and create a beautiful contrast with the surrounding foliage. This Opalia variety is the earliest in the Decorosiers collection. Its small, shiny dark green foliage remains decorative throughout the season, and even throughout winter if it's not too harsh. An easy-to-grow rose bush in all regions, whether in a pot or in the ground, suitable for gardens of all styles and sizes!

The 'Opalia' rose bush belongs to the modern, shrub and landscape roses. Its clustered flowers come from the Polyantha rose, an old hybrid derived from Rosa multiflora and Rosa chinensis. It is a very dense bush, measuring 70 to 80 cm (28 to 32in) in height, with good coverage, in the shape of a slightly spreading dome, about 90 cm (35in) to 1 m (3ft) wide, depending on the growing conditions. Very floriferous, it produces an abundance of semi-double flowers, 4-5 cm (2in) in diameter, from May to October, in pure white, around a golden yellow stamen centre. They have no scent. They are gathered in small clusters of 10 units. Its semi-evergreen foliage is perfectly healthy, composed of small, shiny dark green leaves that cover thorny stems. This variety tolerates heat well.

The Opalia rose bush can be used in flowerbeds, borders, large spaces, slopes, or low hedges. It adapts to all soils that are not too wet and all climates, making it suitable for all regions of our country. It has dense vegetation that works wonders on a slope, hiding the ground. When planted in mass, it can border pathways and highlight flower beds. For example, it can be associated with perennial geraniums (Geranium Blue Cloud, Anne Folkard, Nimbus, Orion), bellflowers (lactiflora, rapunculoides), catmints, lavenders, snapdragons, foxgloves, or other Stachys. When left to grow freely, it forms a bush with a blurry, flowery, and cloudy shape, with a very natural appearance in front of a flowered shrub bed.

The DECOROSIERS roses are ground-covering shrub roses. They can be used in various ways: lawn borders, flowerbeds, slopes, or pots. They can be planted in all types of soil, in full sun or partial shade. They offer long and exceptional flowering periods on healthy, shiny, semi-evergreen foliage. Their qualities have been rewarded with 8 gold medals and 6 ADR labels. Naturally resistant to diseases, they do not require any treatment.

ADR ® is the label of the German Rose Breeders' Federation. The ADR designation is only given to varieties that have passed the strictest tests in the world. The plants are tested simultaneously in 10 different locations, under various soil and climate conditions for several years. The tests cover hardiness, perennial character, and flowering without any pesticide use.

Plant habit

Height at maturity 70 cm
Spread at maturity 40 cm
Habit Irregular, bushy
Growth rate fast

Flowering

Flower colour white
Flowering time May to October
Flower size 5 cm

Foliage

Foliage persistence Semi-evergreen
Foliage colour dark green

Botanical data

Genus

Rosa

Cultivar

Décorosiers Opalia 'Noaschnee'

Family

Rosaceae

Origin

Cultivar or hybrid

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Planting and care

How to plant roses.   Work your soil on a 30 cm (12in) x 30 cm (12in) area, crumble the soil well and place an amendment such as bonemeal at the bottom of the planting hole. Prepare a thick mixture with water and soil. Dip your plant in the mud to coat the roots and prevent air bubbles (this is called pralinage). Position your plant in the planting hole, spreading out the roots and checking the depth: the graft point should be just above the ground. Fill with soil and gently firm it down. Prune the branches to 15/20 cm (6/8in) to stimulate growth. Create a basin at the base of the roses and water abundantly with a fine spray to eliminate air pockets and ensure the soil adheres to the roots. In very cold regions, it may be useful to mulch with leaves or turf up to 20 cm (8in) at the base of your plants. Decorosier roses do not require pruning. However, it is possible to prune them in spring by cutting back the branches by half. In summer, removing faded flowers will encourage new blooms. Naturally resistant to diseases, they do not require fungicidal treatments.

Roses are often stained or unsightly at the end of summer, but this is not a problem for their development. These stains are not harmful to the rose, it is a natural phenomenon.

Planting period

Best planting time March, October
Recommended planting time January to March, November to December

Intended location

Suitable for Meadow, Woodland edge
Type of use Border, Edge of border, Container
Hardiness Hardy down to -23°C (USDA zone 6a) Show map
Ease of cultivation Beginner
Planting density 4 per m2
Exposure Sun, Partial shade
Soil pH Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, Ordinary, well-prepared

Care

Pruning instructions During the flowering period, regularly remove faded flowers. Annual pruning is not necessary, after frost, in spring: shorten the branches between 3 and 5 buds depending on their strength. Clean dead wood in autumn and winter.
Pruning Pruning recommended once a year
Pruning time March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
4,5/5

Roses by purpose

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