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Sorbus forrestii (Sorbus forrestii)

Beginner
skill rating
1 hour care
per year
6m
Max height
6m
Max spread
10-20 years
To maturity
Low
Toxicity

Plant details

Botanical name

Sorbus forrestii

Other names

Sorbus forrestii, Rowan

Genus

Sorbus Sorbus

Species

S. forrestii - S. forrestii is a small tree with an upright habit. It has slender blue-green leaves, turning to yellow in autumn. In spring/ summer it bears flat white flowers, and in autumn it bears white berries tinged with pink.


Sorbus forrestii is: Deciduous

Tree shape

Broadly conical

Toxicity

Fruits, if swollen, may cause stomach upsets

Flower

White in Spring

Foliage

Dark-green in Summer; Yellow in Autumn

How to care

Watch out for

Specific pests

Aphids , Blister mite , Sawflies , Scale insects Aphids , Blister mite , Sawflies , Scale insects

Canker , Fireblight , Silver leaf Canker , Fireblight , Silver leaf

General care

Propagation methods

Grafting, Seed, Softwood cuttings


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Where to grow

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

Suggested uses

City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife

Cultivation

Grow in humus-rich, lime-free, moderately fertile soil. Is pollution-tolerant.

Soil type

Loamy, Sandy

Soil drainage

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

Botanical name

Sorbus forrestii

Other names

Sorbus forrestii, Rowan

Genus

Sorbus Sorbus

Species

S. forrestii - S. forrestii is a small tree with an upright habit. It has slender blue-green leaves, turning to yellow in autumn. In spring/ summer it bears flat white flowers, and in autumn it bears white berries tinged with pink.

Foliage

Deciduous

Tree shape

Broadly conical

Toxicity

Fruits, if swollen, may cause stomach upsets


Colour

Flower

White in Spring

Foliage

Dark-green in Summer; Yellow in Autumn


How to care

Watch out for

Specific pests

Aphids , Blister mite , Sawflies , Scale insects

Specific diseases

Canker , Fireblight , Silver leaf

General care

Propagation methods

Grafting, Seed, Softwood cuttings


Monthly care advice


Where to grow

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

Suggested uses

City, Cottage/Informal, Low Maintenance, Specimen tree, Wildlife

Cultivation

Grow in humus-rich, lime-free, moderately fertile soil. Is pollution-tolerant.

Soil type

Loamy, Sandy

Soil drainage

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 forrestii (Sorbus forrestii)

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 forrestii (Sorbus forrestii)

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 forrestii (Sorbus forrestii)

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

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: 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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