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Can You Grow Watercress in Alaska?

US · USDA Zone 4b · zones 1a, 1b, 2a, 2b

Grows well here

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

Plant zones

2a–9b

Alaska last frost

mid-April

Alaska first frost

mid-October

Days to harvest

30–60 days

When to plant Watercresses in Alaska

Direct sow

Apr 15

Harvest

May 15 – Jun 14

Dates are approximate, based on Alaska'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 Alaska

Alaska ranges from subarctic to maritime climates. The interior has very short summers but intense sunlight. Coastal areas are milder. Cold-hardy crops and greenhouses are key.

See what grows well in Alaska →

Frequently asked questions

Can you grow Watercress in Alaska?

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

What zone is Alaska?

Alaska spans USDA Zone 4b (1a, 1b, 2a, 2b).

When do you plant Watercresses in Alaska?

Plant Watercresses Apr 15, harvest May 15 – Jun 14.