What Can Grow in Wilmington, DE

Wilmington sits in the most populated corner of Delaware with a productive warm climate and good growing conditions.

Wilmington, DE is in USDA Hardiness Zone 7a. The growing season lasts about 178 days, with last frost around March 30 and first fall frost around October 20. Top crops include tomatoes, peppers, corn.

7aUSDA Zone
178 daysFrost-Free
March 30Last Frost
October 20First Frost
🌱 What Grows in Wilmington
tomatoespepperscornbeanssquashbroccoli
💡 Planting Tips

Plant warm crops after April 10. Full range of vegetables possible. Good strawberry conditions.

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📍 Full Zone 7a Guide 🌎 Delaware Planting Guide

Frequently Asked Questions

Wilmington, DE is in USDA Plant Hardiness Zone 7a. Wilmington sits in the most populated corner of Delaware with a productive warm climate and good growing conditions.

The average last spring frost in Wilmington is around March 30. The first fall frost typically arrives around October 20, giving a frost-free growing season of approximately 178 days.

Wilmington's Zone 7a climate supports growing tomatoes, peppers, corn, beans, squash, broccoli. Plant warm crops after April 10. Full range of vegetables possible. Good strawberry conditions.

In Wilmington, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of March 30. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.