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Helianthus tuberosus (Jerusalem artichoke)

Beginner
skill rating
1 hour care
per year
2m
Max height
0.4m
Max spread
1-2 years
To maturity

Plant details

Botanical name

Helianthus tuberosus

Other names

Jerusalem artichoke, Sunchoke, Sunroot, Earth apple, Topinambour

Genus

Helianthus Helianthus

Species

H. tuberosus - H. tuberosus is a tall, branching perennial with large green leaves and yellow, daisy-like flowers in summer. It has an edible tuber which can be harvested in winter.


Helianthus tuberosus is: Deciduous

Habit

Branching, Tall

Flower

Yellow in Summer

Foliage

Green in Summer

How to care

Watch out for

Specific pests

Slugs , Snails Slugs , Snails

Powdery mildew , Sclerotinia diseases Powdery mildew , Sclerotinia diseases

General care

Propagation methods

Seed, Tuber sections


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Where to grow

Helianthus tuberosus (Jerusalem artichoke) will reach a height of 2m and a spread of 0.4m after 1-2 years.

Suggested uses

Add to salads, Architectural, Beds and borders, Containers, Cottage/Informal, Flower Arranging, Wildflower

Cultivation

Grow in loose, well-drained soil in full sun. Site carefully as may become invasive. Plant tubers 12cm deep in spring for autumn harvest. Avoid acid soils. Will tolerate dry periods but water regularly for best tuber production. May require staking.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, 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

Helianthus tuberosus

Other names

Jerusalem artichoke, Sunchoke, Sunroot, Earth apple, Topinambour

Genus

Helianthus Helianthus

Species

H. tuberosus - H. tuberosus is a tall, branching perennial with large green leaves and yellow, daisy-like flowers in summer. It has an edible tuber which can be harvested in winter.

Foliage

Deciduous

Habit

Branching, Tall


Colour

Flower

Yellow in Summer

Foliage

Green in Summer


How to care

Watch out for

Specific pests

Slugs , Snails

Specific diseases

Powdery mildew , Sclerotinia diseases

General care

Propagation methods

Seed, Tuber sections


Monthly care advice


Where to grow

Helianthus tuberosus (Jerusalem artichoke) will reach a height of 2m and a spread of 0.4m after 1-2 years.

Suggested uses

Add to salads, Architectural, Beds and borders, Containers, Cottage/Informal, Flower Arranging, Wildflower

Cultivation

Grow in loose, well-drained soil in full sun. Site carefully as may become invasive. Plant tubers 12cm deep in spring for autumn harvest. Avoid acid soils. Will tolerate dry periods but water regularly for best tuber production. May require staking.

Soil type

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

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Alkaline, Neutral

Light

Full Sun

Aspect

South, 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

Defra's Risk register #1

Plant name

Helianthus tuberosus (Jerusalem artichoke)

Common pest name

African cottom leafworm; Cotton leafworm; Egyptian cotton leafworm; Egyptian cotton worm; Mediterranean climbing cutworm; Meditteranea Brocade; Tobacco cutworm

Scientific pest name

Spodoptera littoralis

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

Regulated pest; frequently intercepted with occasional outbreaks which have been successfully eradicated in the UK.

Defra's Risk register #2

Plant name

Helianthus tuberosus (Jerusalem artichoke)

Common pest name

American serpentine leaf miner; chrysanthemum leaf miner

Scientific pest name

Liriomyza trifolii

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

Regulated pest already subject to review at the EU level (2013). Regularly intercepted in the trade.

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, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

GARDENS WITH THIS PLANT

My Garden
My Garden
Steve Bustin
Side gardens
Side gardens
Muddyboots
My Garden
My Garden
Michelle Salter

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