Sorbus carmesina (Sorbus carmesina )

Botanical name

Sorbus carmesina

Other names

Sorbus carmesina , Mountain ash

Genus

Sorbus Sorbus

Species

S. carmesina - S. carmesina is a broadly columnar, small, deciduous tree with pinnate leaves divided into ovate, blue-green leaflets turning yellow, orange, and red in autumn and, clusters of white flowers in early summer followed by deep pink fruit.

Foliage

Deciduous

Habit

Broadly columnar

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Colour

Flower

White in Summer

Foliage

Blue-green in Spring; Blue-green in Summer; Yellow, Red, Orange in Autumn

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How to care

Watch out for

Specific pests

Aphids , Blister mite , Sawflies

Specific diseases

Apple and pear canker , Fireblight

General care

Propagation methods

Budding, Grafting, Seed, Softwood cuttings

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Monthly care advice

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Where to grow

Sorbus carmesina (Sorbus carmesina ) will reach a height of 6m and a spread of 4m after 10-20 years.

Suggested uses

Low Maintenance, Wildlife

Cultivation

Plant in moderately fertile, humus-rich soil. This tree is tolerant of atmospheric pollution.

Soil type

Clay, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, 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

Defra's Risk register #1

Plant name

Sorbus carmesina (Sorbus carmesina )

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

Sorbus carmesina (Sorbus carmesina )

Common pest name

Cedar-Quince rust; Quince rust; Rust of apple; Rust of juniper; Rust of quince

Scientific pest name

Gymnosporangium clavipes

Type

Fungus

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)

4

General biosecurity comments

EU regulated rust disease which helps mitigate against introduction. A review of EU regulations will help to ensure that all hosts are regulated.

Defra's Risk register #3

Plant name

Sorbus carmesina (Sorbus carmesina )

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

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)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

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/