What Can Grow in Seattle, WA

Seattle's Pacific maritime climate is famous for cool-season crops — mild year-round but limited summer heat.

Seattle, WA is in USDA Hardiness Zone 8b. The growing season lasts about 220 days, with last frost around February 28 and first fall frost around November 20. Top crops include broccoli, kale, lettuce.

8bUSDA Zone
220 daysFrost-Free
February 28Last Frost
November 20First Frost
🌱 What Grows in Seattle
broccolikalelettucebeansbeetsberries
💡 Planting Tips

Cool summers limit heat crops. Focus on cool-season vegetables. Tomatoes in warmest spots only.

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🔗 More Resources
📍 Full Zone 8b Guide 🌎 Washington Planting Guide

Frequently Asked Questions

Seattle, WA is in USDA Plant Hardiness Zone 8b. Seattle's Pacific maritime climate is famous for cool-season crops — mild year-round but limited summer heat.

The average last spring frost in Seattle is around February 28. The first fall frost typically arrives around November 20, giving a frost-free growing season of approximately 220 days.

Seattle's Zone 8b climate supports growing broccoli, kale, lettuce, beans, beets, berries. Cool summers limit heat crops. Focus on cool-season vegetables. Tomatoes in warmest spots only.

In Seattle, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of February 28. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.