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Value-for-money

Rosa x floribunda Decorosier Opalia - Shrub Rose

Rosa x floribunda Decorosier® Opalia® noaschnee
Rose

4,5/5
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Delivery scheduled and roses well protected. Beautiful standard roses and larger than expected. Perfect.

Lysiane , 04/12/2024

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This plant carries a 24 months recovery warranty

More information

ADR Value-for-money
A pure white semi-double flowering standard rose that combines several qualities: an early and particularly long and abundant flowering from May to October, exceptional resistance to diseases, a beautiful foliage that persists in mild climates, and great ease of maintenance. Place it prominently in the centre of a flower bed, along a pathway, or even as a specimen plant on the lawn. This excellent variety has been awarded the prestigious German ADR label.
Flower size
5 cm
Height at maturity
1.50 m
Spread at maturity
70 cm
Exposure
Sun
Hardiness
Hardy down to -15°C
Soil moisture
Moist soil
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Best planting time March, October
Recommended planting time January to April, September to December
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Flowering time May to October
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Description

The Decorosier Standard Rose Opalia is a variety of rose with excellent cluster flowering in every way: its flowering, made up of small semi-double flowers of pure white, is both early and endless, it offers exceptional resistance to diseases that has earned it the German ADR label, its always impeccable foliage persists during mild winters, and it requires little maintenance. Give it a prominent place in the garden or even in a large pot on the patio, it will be an exceptional decoration on its own for many years.

 

Standard roses are obtained by grafting a variety (in this case the Decorosier Opalia rose) onto a single and upright stem belonging to a different rose (Rosa canina, R. laxa or R. multiflora), with the graft being performed at the top. In very cold regions, it may be useful to protect the rootstock during winter.

The Decorosier Opalia rose belongs to the family of floribunda and polyantha roses, which produce flowers grouped in clusters. Grafted onto a stem, it has a characteristic habit, with a slender and upright 'trunk' carrying a large rounded crown. Its thorny stems bear glossy, well-furnished foliage, composed of small, tough, and toothed leaflets of dark green colour. Its flowering is abundant and regular from May to October-November if it is regularly pruned and well-watered. The semi-double flowers are grouped in clusters of about ten units and are 4 to 6 cm (2in) wide. The tightly closed buds open into open cups, revealing a small heart of yellow stamens. The rose is scentless. The plant will retain its leaves during winter if the weather is not too harsh.

The DECOROSIERS are shrub roses with a spreading habit. They can be used in many ways: lawn borders, flower beds, slopes, or planters. They can be planted in any type of soil, in sunny or semi-shaded areas. They offer exceptionally long and abundant flowering on healthy, shiny, and semi-evergreen foliage. Naturally resistant to diseases, they do not require treatment.

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

 

This Opalia Standard Rose is a magnificent specimen, to be placed in the centre of a bed of delicate perennials, along a pathway, near the patio, in isolation in a well-maintained small garden, or in a large pot on the balcony. Its white colour pairs well with all the flowers in the garden. For example, it can be planted in the centre of a bed of pink groundcover roses (The Fairy, Astronomia...), alongside catmints, chamomiles, perennial salvias, foxgloves, nigellas, or baby's breath. A groundcover composed of silver baskets or aubrietas will perfectly enhance it. 

Plant habit

Height at maturity 1.50 m
Spread at maturity 70 cm
Habit ball, spherical
Growth rate fast

Flowering

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

Foliage

Foliage persistence Semi-evergreen
Foliage colour dark green

Botanical data

Genus

Rosa

Species

x floribunda

Cultivar

Decorosier® Opalia® noaschnee

Family

Rosaceae

Other common names

Rose

Origin

Cultivar or hybrid

Product reference160851

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Planting and care

Plant the 'Opalia' Stem Rose from November to March, in ordinary, well-loosened and drained soil. Roses prefer clay soils rather than light ones. In soil that is too sandy, compact or dry in summer, it is preferable to add compost, decomposed manure or humus at the bottom of the planting hole. However, this rose dislikes waterlogged soils in winter. Place it in a sunny location, at most in partial shade. Roses are demanding plants, a specific fertiliser application will be beneficial at the start of vegetation, and regularly throughout the flowering period. To encourage reblooming, regularly remove faded flowers. Floribunda rose varieties are more vigorous and floriferous than large-flowered rose varieties. Therefore, prune the stems to about a quarter of their length (from 4 to 6 buds from the base of the stem) at the end of winter. Always prune above an outward-facing bud so that the bush becomes bushier and the branches do not become tangled in the centre of the branches.

In regions with very cold winters, it is advisable to protect the grafting stock of stem roses (the 'trunk') by surrounding it with a thick winter cover.

 

Planting period

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

Intended location

Suitable for Meadow
Type of use Border, Free-standing, Container
Hardiness Hardy down to -15°C (USDA zone 7b) Show map
Ease of cultivation Amateur
Planting density 3 per m2
Exposure Sun
Soil pH Any
Soil type Silty-loamy (rich and light)
Soil moisture Moist soil, Rich, loose.

Care

Pruning instructions Prune the stems to about a quarter of their length (from 4 to 6 buds from the base of the stem) at the end of winter. Always prune above an outward-facing bud to encourage bushiness and prevent the branches from becoming tangled in the centre of the canopy.
Pruning Pruning recommended once a year
Pruning time February to March
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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