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Iris ensata 'Good Omen' (Japanese water iris 'Good Omen')

Beginner
skill rating
1 hour care
per year
0.8m
Max height
0.6m
Max spread
2-5 years
To maturity
Low
Toxicity

Plant details

Botanical name

Iris ensata 'Good Omen'

Other names

Japanese water iris 'Good Omen', Japanese flag 'Good Omen', Japanese iris 'Good Omen'

Genus

Iris Iris

Variety or Cultivar

'Good Omen' _ 'Good Omen' is an erect, clump-forming, rhizomatous perennial with narrow, strap-like, mid- to bright green leaves and, in early to midsummer, large, reddish-purple to dark purple-pink flowers with yellow throats.


Iris ensata 'Good Omen' is: Deciduous

Habit

Clump-forming, Erect

Toxicity

Ingestion may cause severe discomfort.

Flower

Purplish-pink, Reddish-purple in Summer

Foliage

Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn

How to care

Watch out for

Specific pests

Slugs , Snails Slugs , Snails

Diseases

Generally disease-free.

General care

Pruning

Cut back any dead or dying foliage in autumn. Remove spent flower stems.

Propagation methods

Division


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Where to grow

Iris ensata 'Good Omen' (Japanese water iris 'Good Omen') will reach a height of 0.8m and a spread of 0.6m after 2-5 years.

Suggested uses

Cottage/Informal, Flower Arranging, Beds and borders, Waterside

Cultivation

Plant in moist to wet, deep, humus-rich, acid soil, preferably at the margins of ponds or streams.

Soil type

Clay, Loamy, Sandy

Soil drainage

Boggy damp conditions, Moisture-retentive

Soil pH

Acid

Light

Partial Shade, Full Shade

Aspect

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

Iris ensata 'Good Omen'

Other names

Japanese water iris 'Good Omen', Japanese flag 'Good Omen', Japanese iris 'Good Omen'

Genus

Iris Iris

Variety or Cultivar

'Good Omen' _ 'Good Omen' is an erect, clump-forming, rhizomatous perennial with narrow, strap-like, mid- to bright green leaves and, in early to midsummer, large, reddish-purple to dark purple-pink flowers with yellow throats.

Foliage

Deciduous

Habit

Clump-forming, Erect

Toxicity

Ingestion may cause severe discomfort.


Colour

Flower

Purplish-pink, Reddish-purple in Summer

Foliage

Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn


How to care

Watch out for

Specific pests

Slugs , Snails

Diseases

Generally disease-free.

General care

Pruning

Cut back any dead or dying foliage in autumn. Remove spent flower stems.

Propagation methods

Division


Monthly care advice


Where to grow

Iris ensata 'Good Omen' (Japanese water iris 'Good Omen') will reach a height of 0.8m and a spread of 0.6m after 2-5 years.

Suggested uses

Cottage/Informal, Flower Arranging, Beds and borders, Waterside

Cultivation

Plant in moist to wet, deep, humus-rich, acid soil, preferably at the margins of ponds or streams.

Soil type

Clay, Loamy, Sandy

Soil drainage

Boggy damp conditions, Moisture-retentive

Soil pH

Acid

Light

Partial Shade, Full Shade

Aspect

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

Defra's Risk register #1

Plant name

Iris ensata 'Good Omen' (Japanese water iris 'Good Omen')

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 ensata 'Good Omen' (Japanese water iris 'Good Omen')

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: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Clay, Loamy, Sandy Tell us...
Soil drainage: Boggy damp conditions, Moisture-retentive Tell us...
Soil pH: Acid Tell us...
Light: Partial Shade, Full Shade Tell us...
Aspect: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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