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Can You Grow Watercress in California?

US · USDA Zone 9b · zones 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b

Grows well here

Watercress grows well here if you keep its roots constantly wet — ideal for a shade container garden.

Plant zones

2a–9b

California last frost

mid-January

California first frost

late December

Days to harvest

30–60 days

When to plant Watercresses in California

Direct sow

Jan 10

Harvest

Feb 9 – Mar 11

Dates are approximate, based on California's average frost dates. Your exact yard may vary by microclimate.

About Watercress

Watercress is a peppery, nutrient-dense aquatic green that loves cool, running water and partial shade — an easy container crop if you keep it constantly wet.

Grow in a container of rich soil kept standing in water, refreshed regularly. Harvest outer leaves often. Prefers cool shade to hot sun.

Full watercress growing guide →

Gardening in California

California spans more climate zones than any other state. Coastal regions are mild year-round; the Central Valley is hot and productive; mountains are cold; deserts are extreme.

See what grows well in California →

Frequently asked questions

Can you grow Watercress in California?

Watercress grows well here if you keep its roots constantly wet — ideal for a shade container garden.

What zone is California?

California spans USDA Zone 9b (5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b).

When do you plant Watercresses in California?

Plant Watercresses Jan 10, harvest Feb 9 – Mar 11.