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Can You Grow Zucchini in Washington?

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

Grows well here

Zucchini thrives here and is one of the easiest most productive crops you can grow.

Plant zones

4a–11b

Washington last frost

late January

Washington first frost

mid-December

Days to harvest

45–60 days

When to plant Zucchinis in Washington

Start indoors

Jan 9

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 Zucchini

One of the most productive garden plants — a single zucchini plant can yield more than a family can eat at peak season.

Direct sow after last frost. Give each plant 2-4 sq metres of space. Water at the base to prevent fungal disease. Pick frequently to keep the plant producing.

Full zucchini 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 Zucchini in Washington?

Zucchini thrives here and is one of the easiest most productive crops you can grow.

What zone is Washington?

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

When do you plant Zucchinis in Washington?

Plant Zucchinis around late January (start indoors Jan 9), harvest Mar 16 – Mar 31.