What Can Grow in Davenport, IA

Davenport on the Mississippi River has slightly warmer conditions than western Iowa — good for most vegetables.

Davenport, IA is in USDA Hardiness Zone 5b. The growing season lasts about 155 days, with last frost around April 20 and first fall frost around October 22. Top crops include tomatoes, peppers, corn.

5bUSDA Zone
155 daysFrost-Free
April 20Last Frost
October 22First Frost
🌱 What Grows in Davenport
tomatoespepperscornbeanssquashwatermelon
💡 Planting Tips

Mississippi River location adds warmth. Plant warm crops May 1. Good conditions for melons.

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📍 Full Zone 5b Guide 🌎 Iowa Planting Guide

Frequently Asked Questions

Davenport, IA is in USDA Plant Hardiness Zone 5b. Davenport on the Mississippi River has slightly warmer conditions than western Iowa — good for most vegetables.

The average last spring frost in Davenport is around April 20. The first fall frost typically arrives around October 22, giving a frost-free growing season of approximately 155 days.

Davenport's Zone 5b climate supports growing tomatoes, peppers, corn, beans, squash, watermelon. Mississippi River location adds warmth. Plant warm crops May 1. Good conditions for melons.

In Davenport, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of April 20. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.