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Helianthella quinquenervis (Fivenerve helianthella )

Beginner
skill rating
1 hour care
per year
1.5m
Max height
0.75m
Max spread
1-2 years
To maturity

Plant details

Botanical name

Helianthella quinquenervis

Other names

Fivenerve helianthella , Little sunflower, Five-nerved sunflower, Helianthus quinquenervis.

Genus

Helianthus Helianthus

Species

H. quinquenervis - H. quinquenervis is a clump-forming, deciduous perennial with rough, pointed, narrowly lance-shaped, dark green leaves and slender, erect stems bearing bright yellow flowers from midsummer to early autumn.


Helianthella quinquenervis is: Deciduous

Habit

Erect flower stem, Clump-forming

Flower

Bright-yellow in Summer; Bright-yellow in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn

How to care

Watch out for

Specific pests

Slugs , Snails Slugs , Snails

Powdery mildew , Sclerotinia diseases Powdery mildew , Sclerotinia diseases

General care

Pruning

Divide every 2-4 years to maintain vigour. Cut back after flowering.

Propagation methods

Division, Seed


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Where to grow

Helianthella quinquenervis (Fivenerve helianthella ) will reach a height of 1.5m and a spread of 0.75m after 1-2 years.

Suggested uses

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

Cultivation

Grow in humus-rich, moist soil in full sun or partial shade. Tends to self-seed freely in ideal growing conditions.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

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

Helianthella quinquenervis

Other names

Fivenerve helianthella , Little sunflower, Five-nerved sunflower, Helianthus quinquenervis.

Genus

Helianthus Helianthus

Species

H. quinquenervis - H. quinquenervis is a clump-forming, deciduous perennial with rough, pointed, narrowly lance-shaped, dark green leaves and slender, erect stems bearing bright yellow flowers from midsummer to early autumn.

Foliage

Deciduous

Habit

Erect flower stem, Clump-forming


Colour

Flower

Bright-yellow in Summer; Bright-yellow in Autumn

Foliage

Dark-green in Spring; Dark-green in Summer; Dark-green in Autumn


How to care

Watch out for

Specific pests

Slugs , Snails

Specific diseases

Powdery mildew , Sclerotinia diseases

General care

Pruning

Divide every 2-4 years to maintain vigour. Cut back after flowering.

Propagation methods

Division, Seed


Monthly care advice


Where to grow

Helianthella quinquenervis (Fivenerve helianthella ) will reach a height of 1.5m and a spread of 0.75m after 1-2 years.

Suggested uses

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

Cultivation

Grow in humus-rich, moist soil in full sun or partial shade. Tends to self-seed freely in ideal growing conditions.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

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, Zone 3

Defra's Risk register #1

Plant name

Helianthella quinquenervis (Fivenerve helianthella )

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

Helianthella quinquenervis (Fivenerve helianthella )

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 Tell us...
Soil drainage: Moist but well-drained, Moisture-retentive Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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