OK
In progress indicator

Nasturtium officinale (Watercress)

Intermediate
skill rating
4 hours care
per year
0.5m
Max height
1m
Max spread
2-5 years
To maturity
Low
Toxicity

Plant details

Botanical name

Nasturtium officinale

Other names

Watercress, Water cress, Rorippa nasturtium-aquaticum, Craches, Flixweed, Fluxweed, Water grass, Water radish, Well cress, Rorippa nasturtium, Brooklime, Bank cress

Genus

Nasturtium Nasturtium

Species

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

Habit

Mat Forming

Toxicity

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.

Flower

White in Spring; White in Summer; White in Autumn

Foliage

Mid-green in All seasons

How to care

Watch out for

General care

Pruning

Trim lightly in autumn.

Propagation

Easily roots from nearly every part of the plant.

Propagation methods

Leaf cuttings, Seed, Stem segments, Stem tip cuttings


Sign up for your FREE ACCOUNT today or login to receive detailed monthly care instructions

Where to grow

Nasturtium officinale (Watercress) will reach a height of 0.5m and a spread of 1m after 2-5 years.

Suggested uses

Aquatic, Containers, Ground Cover, Underplanting, Waterside

Cultivation

Best grown in containers in slow-moving water 5cm deep. Can be grown in moist soil in partial shade with winter protection.

Soil drainage

Boggy damp conditions, Moisture-retentive, Pond/In water

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

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

Nasturtium officinale

Other names

Watercress, Water cress, Rorippa nasturtium-aquaticum, Craches, Flixweed, Fluxweed, Water grass, Water radish, Well cress, Rorippa nasturtium, Brooklime, Bank cress

Genus

Nasturtium Nasturtium

Species

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.

Foliage

Deciduous

Habit

Mat Forming

Toxicity

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.


Colour

Flower

White in Spring; White in Summer; White in Autumn

Foliage

Mid-green in All seasons

General care

Pruning

Trim lightly in autumn.

Propagation

Easily roots from nearly every part of the plant.

Propagation methods

Leaf cuttings, Seed, Stem segments, Stem tip cuttings


Monthly care advice


Where to grow

Nasturtium officinale (Watercress) will reach a height of 0.5m and a spread of 1m after 2-5 years.

Suggested uses

Aquatic, Containers, Ground Cover, Underplanting, Waterside

Cultivation

Best grown in containers in slow-moving water 5cm deep. Can be grown in moist soil in partial shade with winter protection.

Soil drainage

Boggy damp conditions, Moisture-retentive, Pond/In water

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 11, Zone 10, Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4, Zone 3

Defra's Risk register #1

Plant name

Nasturtium officinale (Watercress)

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci non-European populations

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)

5

General biosecurity comments

Non-European populations of Bemisia tabaci pose an additional risk to European populations due to the potential for introducing non-European viruses.

Defra's Risk register #2

Plant name

Nasturtium officinale (Watercress)

Common pest name

Cassava whitefly; Cotton whitefly; Sweet potato whitefly; Tobacco whitefly

Scientific pest name

Bemisia tabaci European populations

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)

4

General biosecurity comments

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.

Defra's Risk register #3

Plant name

Nasturtium officinale (Watercress)

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

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)

4

General biosecurity comments

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.

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/

In order to add a note on this plant, please add this plant to your plant lists.

In progress indicator
Full size image
In progress indicator
Caption

Caption

Cancel and close this form
In progress indicator
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...

ARTICLES WITH THIS PLANT

Life on Mars Garden 600 Days with Bradstone Best in Show 2007

By multi award winning designer Sarah Eberle, Life on Mars is an extra-terrestrial space garden that explores psychological importance of man’s relationship with the environment.… read more

The Thames Water Flourishing Future Garden

By Garden Designer Tony Woods. As our world changes, the need to take care of our most precious resource is greater than ever. Weather is increasingly unpredictable, with drier summers… read more

Tom Dixon and IKEA Garden

Tom Dixon and IKEA are curious to see how we can make a positive impact on what we put on our plates, and hence our planet by exploring urban growing. Through our garden, we will use democratic… read more


Report content or feedback to Shoot

To add ? to your lists,
login to your account or subscribe.

Find out more about plant lists here

or Login


To check if this plant is suitable for your garden first login to your account or subscribe.

or Login

In progress indicator
Note

Note

You are adding a note to: ?

Cancel