Iris 'Autumn Encore' (Iris 'Autumn Encore')

Botanical name

Iris 'Autumn Encore'

Other names

Iris 'Autumn Encore', Tall bearded iris 'Autumn Encore'

Genus

Iris Iris

Variety or Cultivar

'Autumn Encore' _ 'Autumn Encore' is a clump-forming, rhizomatous, herbaceous perennial with sword-shaped, grey-green leaves and, in late spring and early summer, and again in autumn, sturdy, upright stems bearing large flowers with violet to deep purple standards and white falls with wide violet to deep purple petal margins.

Foliage

Deciduous

Habit

Clump-forming, Erect

Toxicity

Ingestion may cause severe discomfort.

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Colour

Flower

White, Violet, Purple in Spring; Violet, Purple, White in Summer; White, Violet, Purple in Autumn

Foliage

Grey-green in Autumn

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How to care

Watch out for

Specific pests

Slugs , Snails , Thrips

Specific diseases

Grey mould , Iris rhizome rot , Leaf spot , Virus

General care

Pruning

Cut down spent flower stems. Remove dead foliage in autumn.

Propagation

Divide rhizomes from midsummer to early autumn.

Propagation methods

Division

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Monthly care advice

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Where to grow

Iris 'Autumn Encore' (Iris 'Autumn Encore') will reach a height of 0.9m and a spread of 0.6m after 2-5 years.

Suggested uses

Beds and borders, City, Coastal, Cottage/Informal, Flower Arranging, Wallside and trellises

Cultivation

Will perform best in full sun in well-drained, neutral or slightly acidic loam. Divide and replant every three years.

Soil type

Loamy, Sandy

Soil drainage

Well-drained

Soil pH

Acid, Neutral

Light

Full Sun

Aspect

South, East

Exposure

Exposed, 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

Iris 'Autumn Encore' (Iris 'Autumn Encore')

Common pest name

Red rice root aphid; Rice root aphid

Scientific pest name

Rhopalosiphum rufiabdominalis

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

Potentially significant glasshouse pest; growers should monitor for its presence. Routine aphid control should be effective in mitigating risk.

Defra's Risk register #2

Plant name

Iris 'Autumn Encore' (Iris 'Autumn Encore')

Common pest name

common blossom thrips; cotton bud thrips; tomato thrips

Scientific pest name

Frankliniella schultzei

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

Polyphagous glasshouse pest; present in many countries; single finding in 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: 7^th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/