Species library · Plants & herbs

Foraging Watercress

Nasturtium officinale

Typically in season from March to November in the northern hemisphere. Found in Waterside, Wetland. Has toxic lookalikes, so check carefully.

Watercress (Nasturtium officinale)

Photo: (c) Andrew Tree, some rights reserved (CC BY), uploaded by Andrew Tree · iNaturalist

When Watercress is in season

Typical window in the northern hemisphere, peak March to November. The southern hemisphere runs about six months offset, and your own timing depends on local weather, so check your town.

→ Everything in season to forage in September

Where it grows

Watercress is usually found in Waterside, Wetland.

⚠ Look-alikes & safety

Deadly look-alikes: Cowbane, Hemlock water dropwort, Lesser water parsnip. Only forage with a confident ID.

Take Watercress into the field

Open Watercress in the Forage app for its full field guide entry with more photos, key features and toxic lookalikes to check against. Add it to your watchlist and the app pings you the moment it comes into season at your exact spot, worked out from live weather, elevation and billions of occurrence records.

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Watercress: common questions

When is Watercress in season?

Watercress is generally in season from March to November in temperate northern regions. The exact timing shifts with latitude, elevation and each year's weather. Check the Season Finder for your own location.

Where does Watercress grow?

Watercress is usually found in Waterside, Wetland.

Is Watercress safe to forage?

Deadly look-alikes: Cowbane, Hemlock water dropwort, Lesser water parsnip. Only forage with a confident ID. Never eat any wild plant, berry, nut or mushroom unless you are completely certain of the identification. Check every find against a reliable field guide, and when in doubt, don't.

One note before you head out

Forage helps you discover and identify wild plants, but identification is never 100% certain. Many edible plants have toxic lookalikes. Never eat anything you find based only on what this app tells you. Always confirm with a field guide, an experienced forager or a local expert. The season score tells you where to look, too: it’s not a guarantee. Mind conservation law and property rights as well.

Species photos via Wikimedia Commons and iNaturalist · full credits