What Can Grow in Hillsboro, OR

Hillsboro in the Tualatin Valley is in Oregon's prime agricultural belt with excellent growing conditions.

Hillsboro, OR 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 tomatoes, broccoli, beans.

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

Tualatin Valley richness. Excellent berry and hazelnut conditions. Cool-season crops excel.

🌱
Shop seeds matched to your zone Burpee, Park Seed, and more — curated for your growing conditions.
Shop Seeds →
🔗 More Resources
📍 Full Zone 8b Guide 🌎 Oregon Planting Guide

Frequently Asked Questions

Hillsboro, OR is in USDA Plant Hardiness Zone 8b. Hillsboro in the Tualatin Valley is in Oregon's prime agricultural belt with excellent growing conditions.

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

Hillsboro's Zone 8b climate supports growing tomatoes, broccoli, beans, hazelnuts, strawberries, kale. Tualatin Valley richness. Excellent berry and hazelnut conditions. Cool-season crops excel.

In Hillsboro, 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.