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Corylus avellana (Hazel)

Beginner
skill rating
1 hour care
per year
8m
Max height
8m
Max spread
10-20 years
To maturity

Plant details

Botanical name

Corylus avellana

Other names

Hazel, Wood nut, Hale nut, Hazel nut, Cobnut, Common filbert, European hazelnut, Stock nut

Genus

Corylus Corylus

Species

C. avellana - C. avellana is a large deciduous shrub or small tree with long yellow male catkins, and short red female catkins in the spring before the leaves. It has green leaves and in summer it has clusters of sweet, oval nuts that are covered with green husks.


Corylus avellana is: Deciduous

Tree shape

Spreading

Flower

Yellow in Spring

Foliage

Green in Spring; Green in Summer; Yellow in Autumn

How to care

Watch out for

Specific pests

Aphids , Caterpillars , Gall mites , Sawflies , Squirrels Aphids , Caterpillars , Gall mites , Sawflies , Squirrels

Diseases

Generally disease-free.

General care

Propagation methods

Layering, Seed


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Where to grow

Corylus avellana (Hazel) will reach a height of 8m and a spread of 8m after 10-20 years.

Suggested uses

Cottage/Informal, Flower Arranging, Hedging/Screens, Low Maintenance, Wildflower, Wildlife

Cultivation

Plant in moist, free-draining, ideally alkaline soil in full sun or partial shade.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

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)

Companion plants

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

Botanical name

Corylus avellana

Other names

Hazel, Wood nut, Hale nut, Hazel nut, Cobnut, Common filbert, European hazelnut, Stock nut

Genus

Corylus Corylus

Species

C. avellana - C. avellana is a large deciduous shrub or small tree with long yellow male catkins, and short red female catkins in the spring before the leaves. It has green leaves and in summer it has clusters of sweet, oval nuts that are covered with green husks.

Foliage

Deciduous

Tree shape

Spreading


Colour

Flower

Yellow in Spring

Foliage

Green in Spring; Green in Summer; Yellow in Autumn


How to care

Watch out for

Specific pests

Aphids , Caterpillars , Gall mites , Sawflies , Squirrels

Diseases

Generally disease-free.

General care

Propagation methods

Layering, Seed


Monthly care advice


Where to grow

Corylus avellana (Hazel) will reach a height of 8m and a spread of 8m after 10-20 years.

Suggested uses

Cottage/Informal, Flower Arranging, Hedging/Screens, Low Maintenance, Wildflower, Wildlife

Cultivation

Plant in moist, free-draining, ideally alkaline soil in full sun or partial shade.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

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

Defra's Risk register #1

Plant name

Corylus avellana (Hazel)

Common pest name

Asian longhorn beetle; Starry sky beetle

Scientific pest name

Anoplophora glabripennis

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)

4

General biosecurity comments

Recognised threat to a wide range of deciduous tress native to the UK. Already regulated it is a priority for continued surveillance and statutory action. The risk of entry is further mitigated by EU legislation requiring the monitoring of wooden packaging material originating from China.

Defra's Risk register #2

Plant name

Corylus avellana (Hazel)

Common pest name

Lemon tree borer

Scientific pest name

Oemona hirta

Type

Insect

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)

3

General biosecurity comments

Wood boring beetle native to New Zealand with a wide host range of trees and shrubs. The UK will press for consideration of UK listing.

Defra's Risk register #3

Plant name

Corylus avellana (Hazel)

Common pest name

Scientific pest name

Monochamus guttulatus

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)

3

General biosecurity comments

East Asian longhorn beetle whose larvae feed on a range of deciduous trees; with a preference for dying trees. A PRA will help to better assess the level of risk to the UK.

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: Chalky, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Alkaline, 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...

DISCUSS THIS PLANT

soil

I am thinking of planting Corylus avellana in soil that has a pH of 6.5.Do you think it will thrive? read more

Corylus avellana

Reddish-brown nuts in a green husk are seen on hazel in the late summer and autumn; but these are generally eaten quickly by squirrels, woodpeckers, tits, nuthatches, mice or even dormice, which… read more

There are 11 active discussions about Corylus avellana (Hazel)

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ARTICLES WITH THIS PLANT

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Created by garden designer Charlie Hartigan of Envisage Gardens, 1 in 10 garden at RHS Tatton Park Flower Show 2019 was designed as part of the RHS Young Designer of the Year competition. read more

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The RHS Back to Nature Garden, designed by The Duchess of Cambridge and award-winning landscape architects Andree Davies and Adam White of Davies White Landscape Architects, is based in a woodland… read more

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Designed by Helen J Rosevear and Jane Stoneham. This accessible, sensory-rich family garden promotes the Year of Green Action 2019.  read more

Back to Nature Garden designed by The Duchess of Cambridge

The RHS Back to Nature Garden, designed by The Duchess of Cambridge and award-winning landscape architects Andree Davies and Adam White of Davies White Landscape Architects, is based in a woodland… read more

The Resilience Garden

The garden, created by award-winning designer Sarah Eberle, underlines that we need to increase tree cover, diversify planting and follow biosecurity guidelines to help protect our landscapes from… read more

View all 24 articles


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