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Delaware Planting Calendar

Delaware spans USDA hardiness zones 7a, 7b. Planting dates vary significantly across the state depending on your zone. Find your county on the map below for exact frost dates and planting windows.

Find Your County

Click any county to see your local planting calendar with exact frost dates and planting windows.

Hover over a county to see details. Click to view planting guide.

Zones in Delaware

Growing Season Comparison

Frost Dates & Growing Season by County

View all 3 Delaware counties with frost dates
County Zone Last Frost First Frost Growing Days
Kent County 7a Apr 2 Nov 4 216
New Castle County 7a Apr 6 Oct 31 208
Sussex County 7b Apr 3 Nov 7 218

🥬 Vegetables

Browse all 116 vegetables you can grow in Delaware

🍓 Fruits

Browse all 34 fruits you can grow in Delaware

🌿 Herbs

Browse all 42 herbs you can grow in Delaware

Monthly Planting Guide for Delaware

Level Up Your Garden

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals. Last updated: April 2026.