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Can You Grow Kohlrabi in Washington?

US · USDA Zone 8b · zones 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b

Grows well here

Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.

Plant zones

3a–9b

Washington last frost

late January

Washington first frost

mid-December

Days to harvest

45–60 days

When to plant Kohlrabis in Washington

Start indoors

Jan 2

Transplant

Jan 30

Harvest

Mar 16 – Mar 31

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

About Kohlrabi

Kohlrabi looks alien but tastes like a mild, crisp broccoli stem. One of the fastest cool-season crops — ready in 6-8 weeks and handles light frosts like a champion.

Start indoors 4-6 weeks before last frost or direct sow. Thin to 6-8 inches. Harvest when bulbs are 2-3 inches diameter — bigger gets woody. Great for fall crops too.

Full kohlrabi growing guide →

Gardening in Washington

Washington has dramatically different climates. The wet maritime west (Zone 8a-8b) is mild and productive year-round. Eastern Washington is semi-arid and colder (Zone 5-6) with hot dry summers.

See what grows well in Washington →

Frequently asked questions

Can you grow Kohlrabi in Washington?

Kohlrabi thrives in your zone — it is one of the most productive cool-season crops for your climate.

What zone is Washington?

Washington spans USDA Zone 8b (4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b).

When do you plant Kohlrabis in Washington?

Plant Kohlrabis around late January (start indoors Jan 2), harvest Mar 16 – Mar 31.