Nasturtium officinale
Watercress, Water cress, Rorippa nasturtium-aquaticum, Craches, Flixweed, Fluxweed, Water grass, Water radish, Well cress, Rorippa nasturtium, Brooklime, Bank cress
Nasturtium Nasturtium
N. officinale - N. officinale is a mat-forming, edible, aquatic, semi-evergreen perennial with hollow stems bearing pinnate leaves divided into ovate, mid-green leaflets and clusters of tiny, white flowers from late spring into autumn.
Nasturtium officinale is: Deciduous
Mat Forming
All parts are edible but care should be taken if harvested in the wild. Plants growing in water that drains from fields where livestock is kept should not be used raw.
White in Spring; White in Summer; White in Autumn
Mid-green in All seasons
Trim lightly in autumn.
Easily roots from nearly every part of the plant.
Leaf cuttings, Seed, Stem segments, Stem tip cuttings
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Nasturtium officinale (Watercress) will reach a height of 0.5m and a spread of 1m after 2-5 years.
Aquatic, Containers, Ground Cover, Underplanting, Waterside
Best grown in containers in slow-moving water 5cm deep. Can be grown in moist soil in partial shade with winter protection.
Boggy damp conditions, Moisture-retentive, Pond/In water
Partial Shade, Full Sun
South, West
Sheltered
Hardy (H4)
We do not currently have companion plants added for this plant.
Nasturtium officinale
Watercress, Water cress, Rorippa nasturtium-aquaticum, Craches, Flixweed, Fluxweed, Water grass, Water radish, Well cress, Rorippa nasturtium, Brooklime, Bank cress
Nasturtium Nasturtium
N. officinale - N. officinale is a mat-forming, edible, aquatic, semi-evergreen perennial with hollow stems bearing pinnate leaves divided into ovate, mid-green leaflets and clusters of tiny, white flowers from late spring into autumn.
Deciduous
Mat Forming
All parts are edible but care should be taken if harvested in the wild. Plants growing in water that drains from fields where livestock is kept should not be used raw.
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White in Spring; White in Summer; White in Autumn
Mid-green in All seasons
Trim lightly in autumn.
Easily roots from nearly every part of the plant.
Leaf cuttings, Seed, Stem segments, Stem tip cuttings
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Nasturtium officinale (Watercress) will reach a height of 0.5m and a spread of 1m after 2-5 years.
Aquatic, Containers, Ground Cover, Underplanting, Waterside
Best grown in containers in slow-moving water 5cm deep. Can be grown in moist soil in partial shade with winter protection.
Boggy damp conditions, Moisture-retentive, Pond/In water
Partial Shade, Full Sun
South, West
Sheltered
Hardy (H4)
Zone 11, Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3
Nasturtium officinale (Watercress)
Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly
Bemisia tabaci non-European populations
Insect
Absent
2
5
Non-European populations of Bemisia tabaci pose an additional risk to European populations due to the potential for introducing non-European viruses.
Nasturtium officinale (Watercress)
Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly
Bemisia tabaci European populations
Insect
Absent
2
4
The UK has a protected zone in place for this pest which helps to mitigate the risk of entry and establishment. An EFSA opinion is currently being discussed at the EU Annexes Working Group which recommends further strengthening of the regulation.
Nasturtium officinale (Watercress)
Lance nematode; Nematode; Lance
Hoplolaimus spp.
Nematode
Absent
2
4
Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.
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 drainage: | Boggy damp conditions, Moisture-retentive, Pond/In water | Tell us... |
Light: | Partial Shade, Full Sun | Tell us... |
Aspect: | South, West | Tell us... |
Exposure: | Sheltered | Tell us... |
Hardiness: | Hardy (H4) | Tell us... |
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