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Rosa x polyantha 'Sans Contraintes' 'Sweet Knirps' - Ground Cover Rose

Rosa x polyantha SANS CONTRAINTES® Sweet Knirps® 'korzalicha'
Korzalicha Polyantha Rose

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Thanks to the individuals for the order preparation and shipping, the bare-root rose I received seems healthy. Planted near the 'Knirps' variety, I am now patiently waiting for it to take root... or not?

Thierry, 24/02/2023

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This plant carries a 24 months recovery warranty

More information

ADR
A very pretty version with soft pink flowers and excellent ground cover rose 'Sweet Knirps'. It forms a cascade of tiny, fully double flowers that resemble old-fashioned roses. The foliage is a shiny green, composed of small leaves, forming a wide, carpet-like cushion that has a beautiful effect. The plant blooms abundantly for 4 to 5 months, from summer until the first frost. Very hardy, vigorous, and easy to maintain, this variety from Kordes' 'Sans Contraintes' series has good natural disease resistance. Ideal for small gardens, perfect in a trough or pots.
Flower size
4 cm
Height at maturity
30 cm
Spread at maturity
60 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 May, September to December
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Flowering time June to October
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Description

The 'Sweet Knirps' rose bush has the same qualities and charm as its parent, the ground cover rose Knirps, but its small pompom flowers are a much lighter pink. It will seduce with its wide cushion-like habit, long and abundant romantic flowering, and natural resistance to rose diseases. Its miniature roses bloom abundantly for 4 to 5 months, continuously succeeding each other on an elegant, dark green foliage, forming a beautiful cascade of flowers. Robust and hardy, this rose from the 'Sans Contraintes' series requires little attention and care from the gardener, even for beginners. It can be planted anywhere and is perfect in front of taller shrubs, on large borders along pathways, or in a container on the balcony.

The flowers of Rosa 'Sweet Knirps' ('korzalicha'), gathered in terminal clusters, come from the polyantha rose, an old hybrid derived from Rosa multiflora and Rosa chinensis. This excellent German variety has received several awards in international competitions. It was introduced in 2014 by the German rose breeder Kordes. The 'Sans Contraintes' roses from Kordes grow on their own, requiring no pruning or chemical treatments, and will reward abundantly the little care they receive.

This wide and low bush has a dense habit, compact and covering vegetation, and develops spreading branches covered with thorns. It will reach approximately 30 cm (12in) in height with a spread of 60 cm (24in) in a few years, possibly a little more if left unpruned. The double flowers, 3 to 4 cm (1 to 2in) in diameter, gathered in clusters, are produced abundantly and continuously from June to October if the soil remains moist in summer. The flower buds in this 'Sweet Knirps' variety are light and pure pink. They open into cup-shaped blooms of a candy pink, fading slightly over time. The plant develops elegant, well-furnished foliage divided into small, thick, glossy leaflets ranging from bright green to dark green. The leaves turn yellow in autumn before falling.

The 'Sweet Knirps' rose is exceptionally hardy and adapts to all soils that are not too dry and to all climates, making it suitable for many regions. Plant it as a border, in a flower bed, in a container 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, isolated on a lawn in a small garden. Plant it en masse or pair it with other ground cover roses of different colours to highlight the path of a pathway or the borders 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 combines perfectly with shrub roses to add a lovely romantic touch to your garden.

 

Rosa x polyantha 'Sans Contraintes' 'Sweet Knirps' - Ground Cover Rose in pictures

Rosa x polyantha 'Sans Contraintes' 'Sweet Knirps' - Ground Cover Rose (Flowering) Flowering
Rosa x polyantha 'Sans Contraintes' 'Sweet Knirps' - Ground Cover Rose (Foliage) Foliage
Rosa x polyantha 'Sans Contraintes' 'Sweet Knirps' - Ground Cover Rose (Plant habit) Plant habit

Plant habit

Height at maturity 30 cm
Spread at maturity 60 cm
Habit creeping
Growth rate fast

Flowering

Flower colour pink
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 CONTRAINTES® Sweet Knirps® 'korzalicha'

Family

Rosaceae

Other common names

Korzalicha Polyantha Rose

Origin

Cultivar or hybrid

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Planting and care

Planting your rose requires some preparation. Begin by working the soil to a depth of 25 cubic cm and adding a base amendment like blood, fish, and bone to the bottom of the planting hole. Remove the plant from its pot and position it by covering the top of the root ball with 3 cm (1in) of soil. Refill the hole and water generously to eliminate any air pockets. It's essential to water the rose regularly for a few weeks during dry weather to help the roots grow. Use a special rose fertiliser that stimulates plant flowering. Choose a sunny location or partial shade to plant your rose in hot regions.

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, Woodland edge
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, Partial shade
Soil pH Any
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, Loose and deep soil.

Care

Pruning instructions It is important to remove any faded flowers during the flowering period regularly. In the spring, after the frost, annual pruning should be undertaken. Shorten all branches to between 3 and 5 buds, depending on their strength. Dead wood should be removed in the autumn and winter.
Pruning Pruning recommended once a year
Pruning time March, July to September
Soil moisture Moist soil
Disease resistance Very good
Overwinter Can be left in the ground
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