When to Plant Potatoes in Delaware
In Delaware, the time to plant potatoes outside runs from Mar 14 – Mar 28 in Dover to Mar 21 – Apr 4 in Milford. In Wilmington, it's Mar 17 – Mar 31.
Plant seed potatoes a few weeks before the last frost; cover any shoots if a late frost threatens.
- Plant outside: 1–3 weeks before the last frost.
Potatoes planting dates in Delaware by city
| City | Zone | Plant outside |
|---|---|---|
| Dover | 7b | Mar 14 – Mar 28 |
| Elsmere | 7b | Mar 17 – Mar 31 |
| Georgetown | 7b | Mar 14 – Mar 28 |
| Middletown | 7b | Mar 17 – Mar 31 |
| Milford | 7b | Mar 21 – Apr 4 |
| Millsboro | 7b | Mar 14 – Mar 28 |
| New Castle | 7b | Mar 17 – Mar 31 |
| Newark | 7b | Mar 17 – Mar 31 |
| Seaford | 7b | Mar 21 – Apr 4 |
| Smyrna | 7b | Mar 14 – Mar 28 |
| Wilmington | 7b | Mar 17 – Mar 31 |
Calculated from each town's average (50%) frost dates, from the nearest NOAA station (1991–2020). Typical dates for the 2027 planting season, based on NOAA's 1991–2020 averages. They are long-term odds, not a forecast: always check your local forecast before planting. Zones: 2023 USDA Plant Hardiness Zone Map (USDA-ARS and Oregon State University). Not the official map; see planthardiness.ars.usda.gov.
See all frost dates in Delaware, or the general guide to when to plant potatoes.
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