Iris 'Black Knight'
Gold-marked iris 'Black Knight', Iris 'Black Knight', Iris chrysographes 'Black Knight'
Iris Iris
'Black Knight' _ 'Black Knight' is a clump-forming, rhizomatous perennial with upright, strap-like, grey-green leaves and, in summer, dark purple flowers with gold streaks on the falls.
Iris 'Black Knight' is: Deciduous
Flowers are fragrant
Clump-forming, Erect
Ingestion may cause severe discomfort.
Black, Golden-yellow, Dark-purple in Summer
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Slugs , Snails , Thrips Slugs , Snails , Thrips
Grey mould , Iris rhizome rot Grey mould , Iris rhizome rot
Cut back after flowering to keep tidy
Divide every 3-4 years for best blooms.
Division
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Iris 'Black Knight' (Iris 'Black Knight') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.
Beds and borders, City, Coastal, Containers, Cottage/Informal, Flower Arranging, Wallside and trellises, Wildlife
Plant in moist, but well-drained, neutral to slightly alkaline loam in full sun or partial shade. Mulch in spring.
Loamy, Clay
Well-drained, Moist but well-drained
Alkaline, Neutral
Partial Shade, Full Sun
South, West
Sheltered
Tender in frost (H3)
We do not currently have companion plants added for this plant.
Iris 'Black Knight'
Gold-marked iris 'Black Knight', Iris 'Black Knight', Iris chrysographes 'Black Knight'
Iris Iris
'Black Knight' _ 'Black Knight' is a clump-forming, rhizomatous perennial with upright, strap-like, grey-green leaves and, in summer, dark purple flowers with gold streaks on the falls.
Deciduous
Flowers are fragrant
Clump-forming, Erect
Ingestion may cause severe discomfort.
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Black, Golden-yellow, Dark-purple in Summer
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
Cut back after flowering to keep tidy
Divide every 3-4 years for best blooms.
Division
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Iris 'Black Knight' (Iris 'Black Knight') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.
Beds and borders, City, Coastal, Containers, Cottage/Informal, Flower Arranging, Wallside and trellises, Wildlife
Plant in moist, but well-drained, neutral to slightly alkaline loam in full sun or partial shade. Mulch in spring.
Loamy, Clay
Well-drained, Moist but well-drained
Alkaline, Neutral
Partial Shade, Full Sun
South, West
Sheltered
Tender in frost (H3)
Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Iris 'Black Knight' (Iris 'Black Knight')
Red rice root aphid; Rice root aphid
Rhopalosiphum rufiabdominalis
Insect
Absent
3
3
Potentially significant glasshouse pest; growers should monitor for its presence. Routine aphid control should be effective in mitigating risk.
Iris 'Black Knight' (Iris 'Black Knight')
common blossom thrips; cotton bud thrips; tomato thrips
Frankliniella schultzei
Insect
Absent
2
3
Polyphagous glasshouse pest; present in many countries; single finding in UK.
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: | Loamy, Clay | Tell us... |
Soil drainage: | Well-drained, Moist but well-drained | Tell us... |
Soil pH: | Alkaline, Neutral | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | South, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Tender in frost (H3) | Tell us... |
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