Delaware Planting Guide & Growing Season
Delaware is in USDA hardiness zone with a growing season of 200 days. The average last spring frost is Apr 1 - Apr 15 and the average first fall frost is Oct 15 - Nov 1. Climate data based on Dover.
Growing Conditions in Delaware
How Delaware Compares
Compare Delaware's growing conditions with states that have similar climates.
| State | USDA Zone | Last Frost | First Frost | Season (days) |
|---|---|---|---|---|
| Delaware (DE) | Apr 1 - Apr 15 | Oct 15 - Nov 1 | 200 | |
| Alabama (AL) | Mar 1 - Apr 1 | Oct 25 - Nov 15 | 220 | |
| Alaska (AK) | May 15 - Jun 15 | Aug 15 - Sep 15 | 105 | |
| Arizona (AZ) | Feb 1 - Apr 15 | Oct 15 - Dec 15 | 270 | |
| Arkansas (AR) | Mar 15 - Apr 15 | Oct 15 - Nov 1 | 210 | |
| California (CA) | Jan 15 - Apr 15 | Oct 15 - Dec 31 | 290 |
Frequently Asked Questions About Gardening in Delaware
When should I start seeds indoors in Delaware?
In Delaware, the average last frost date is Apr 1 - Apr 15. Start most seeds indoors 6-8 weeks before this date. The USDA hardiness zone for Delaware is undefined, with a growing season of approximately 200 days.
What USDA hardiness zone is Delaware?
Delaware falls in USDA hardiness zones undefined. This affects which perennial plants will survive winter and influences optimal planting times.
When is the first frost in Delaware?
The average first frost date in Delaware is Oct 15 - Nov 1. Plan to harvest cold-sensitive crops before this date or protect them with row covers.
How long is the growing season in Delaware?
Delaware has an average growing season of 200 days, from the last frost (Apr 1 - Apr 15) to first frost (Oct 15 - Nov 1). This moderate season works well for most common vegetables.
Plan Your Garden
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