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Sorbus thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell')

Beginner
skill rating
1 hour care
per year
15m
Max height
15m
Max spread
20-50 years
To maturity

Plant details

Botanical name

Sorbus thibetica 'John Mitchell'

Other names

Tibetan whitebeam 'John Mitchell', Sorbus aria 'Mitchellii'

Genus

Sorbus Sorbus

Variety or Cultivar

'John Mitchell' _ 'John Mitchell' is a compact, deciduous tree with rounded, elliptic leaves that are covered with white hairs when young and mature to dark green with white undersides. In spring, it bears clusters of creamy-white flowers, followed by brown berries in autumn.


Sorbus thibetica 'John Mitchell' is: Deciduous

Tree shape

Compact, Rounded

Awards

RHS AGM (Award of Garden Merit)

Flower

White in Spring

Foliage

White in Spring; Dark-green in Summer

How to care

Watch out for

Specific pests

Aphids , Blister mite Aphids , Blister mite

Apple and pear canker , Fireblight Apple and pear canker , Fireblight

General care

Propagation methods

Budding, Grafting, Seed, Softwood cuttings


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Where to grow

Sorbus thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell') will reach a height of 15m and a spread of 15m after 20-50 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)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Sorbus thibetica 'John Mitchell'

Other names

Tibetan whitebeam 'John Mitchell', Sorbus aria 'Mitchellii'

Genus

Sorbus Sorbus

Variety or Cultivar

'John Mitchell' _ 'John Mitchell' is a compact, deciduous tree with rounded, elliptic leaves that are covered with white hairs when young and mature to dark green with white undersides. In spring, it bears clusters of creamy-white flowers, followed by brown berries in autumn.

Foliage

Deciduous

Tree shape

Compact, Rounded

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

White in Spring

Foliage

White in Spring; Dark-green in Summer


How to care

Watch out for

Specific pests

Aphids , Blister mite

Specific diseases

Apple and pear canker , Fireblight

General care

Propagation methods

Budding, Grafting, Seed, Softwood cuttings


Monthly care advice


Where to grow

Sorbus thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell') will reach a height of 15m and a spread of 15m after 20-50 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 7, Zone 6, Zone 5

Defra's Risk register #1

Plant name

Sorbus thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell')

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 thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell')

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.

Defra's Risk register #3

Plant name

Sorbus thibetica 'John Mitchell' (Tibetan whitebeam 'John Mitchell')

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.

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

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This plant likes... Garden match
Soil types: Clay, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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pruning a sorbus

Hi I will start by saying I know nothing about plants so bear with me if I sound a bit dim lol !I bought 2 different sorbus trees 2 years ago and planted in the back of my south facing flowerbed.One… read more

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GARDENS WITH THIS PLANT

Clyde House
Clyde House
Mrs D Planting By Design

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