Rosa glauca (Red-leaved rose)

Botanical name

Rosa glauca

Other names

Rosa ferruginea, Rosa rubrifolia, Red-leaved rose, Rosa glauca Pourr

Genus

Rosa Rosa

Species

R. glauca - R. glauca is a vigorous, arching, deciduous shrub with thorny, red-flushed stems bearing pinnate leaves divided into five to nine, ovate to narrowly elliptic, toothed, purple-flushed, dark grey-green leaves and, in summer, small clusters of single, star-shaped, bright
rose-pink flowers, paler at the centre with prominent, golden-yellow stamens.

Foliage

Deciduous

Fragrance

The flowers are lightly scented.

Habit

Arching

Awards

RHS AGM (Award of Garden Merit)

Colour

Flower

Rose-pink in Summer

Foliage

Flushed purple, Dark-green in Spring; Flushed purple, Dark-green in Summer; Flushed purple, Dark-green in Autumn

How to care

Watch out for

Specific pests

Aphids , Caterpillars , Glasshouse red spider mite , Leafhoppers , Rabbits , Rose leaf-rolling sawfly , Scale insects

Specific diseases

Rose black spot , Powdery mildew , Rose rust

General care

Pruning

Pruning group 21. If rose hips are desired, avoid pruning after flowering.

Propagation methods

Budding, Hardwood cuttings

Monthly care advice

Where to grow

Rosa glauca (Red-leaved rose) will reach a height of 2m and a spread of 1.5m after 5-10 years.

Suggested uses

City, Cottage/Informal, Beds and borders

Cultivation

Grow in fertile, humus-rich, moist but well-drained or well-drained soil. Mulch and feed in late winter or early spring for best flowering. Tolerates shade, poor soil, and a north-facing aspect. Suitable for use as a hedge. Best to avoid planting where roses have grown before.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3, Zone 2

Defra's Risk register #1

Plant name

Rosa glauca (Red-leaved rose)

Common pest name

grape ground pearl

Scientific pest name

Margarodes vitis

Type

Insect

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

5

General biosecurity comments

Main pathway; Vitis spp. plants for planting; already prohibited. However; further consideration of other pathways is required.

Defra's Risk register #2

Plant name

Rosa glauca (Red-leaved rose)

Common pest name

Scientific pest name

Rose Rosette Virus

Type

Virus or Viroid

Current status in UK

Absent

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

Pest of economical and socially important host in the UK; which is currently absent. If introduced it has the potential to cause significant damage. Statutory action against findings is justified and regulation of the pest advised.

Defra's Risk register #3

Plant name

Rosa glauca (Red-leaved rose)

Common pest name

Apple root knot nematode

Scientific pest name

Meloidogyne mali

Type

Nematode

Current status in UK

Unknown

Likelihood to spread to UK (1 is very low - 5 is very high)

3

Impact (1 is very low - 5 is very high)

4

General biosecurity comments

UK (along with certain other European countries) received potentially infested trees in 1992; but these were destroyed at the end of the trial period and targeted surveillance has failed to find any trace of the nematode. Main impacts are on elm; apple and mulberry and industry should source such material carefully.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/