Iris japonica 'Variegata' (Variegated fringed iris)

Botanical name

Iris japonica 'Variegata'

Other names

Variegated fringed iris, Fringed iris 'Variegata', Orchid iris 'Variegata', Crested iris 'Variegata', Iris tectorum 'Variegata', Iris tectorum 'Cruella', Variegated Japanese roof iris

Genus

Iris Iris

Variety or Cultivar

'Variegata' _ 'Variegata' is a clump-forming, rhizomatous, semi-evergreen to evergreen perennial with fans of strap-shaped, glossy, white- and green-striped leaves and, in late spring and early summer, slender, upright, branched stems bearing flattened, frilled, white or pale lavender-blue flowers with purple markings and orange crests.

Native to

Garden origin

Foliage

Evergreen

Habit

Clump-forming, Erect

Toxicity

Ingestion may cause severe discomfort.

Awards

RHS AGM (Award of Garden Merit)

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Colour

Flower

White, Lavender in Spring; White, Lavender in Summer

Foliage

White, Striped, Grey-green in All seasons

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How to care

Watch out for

Specific pests

Slugs , Snails , Thrips

Specific diseases

Grey mould

General care

Pruning

Remove spent flower stems. Remove faded or dead foliage in autumn.

Propagation

Divide rhizomes from midsummer to early autumn. Sow seeds in a cold frame in spring or autumn.

Propagation methods

Division, Seed

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Monthly care advice

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Where to grow

Iris japonica 'Variegata' (Variegated fringed iris) will reach a height of 0.45m and a spread of 0.45m after 2-5 years.

Suggested uses

Beds and borders, Containers, Cottage/Informal, Flower Arranging, Rock

Cultivation

Plant in moist, humus-rich soil in full sun or partial shade. Prefers a sheltered, sunny spot near a south- or west-facing wall. Plant rhizomes approximately 5cm deep. Rhizomes tend to rise out of the ground so mulch in fall and spring.

Soil type

Clay, Loamy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Alkaline, Neutral

Light

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

Iris japonica 'Variegata' (Variegated fringed iris)

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 japonica 'Variegata' (Variegated fringed iris)

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/