Frost Dates & Planting Calendars in Delaware
In Delaware, the average last spring frost ranges from March 30 in Claymont to April 19 in Hockessin, and the average first fall frost from October 26 in Hockessin to November 16 in Claymont. Pick a city for its full frost-date summary and 42-crop planting calendar.
| City | Last Spring Frost (typical) | First Fall Frost (typical) | Growing Season | USDA Zone |
|---|---|---|---|---|
| Wilmington | April 7 | November 4 | 209 days | 7b |
| Dover | April 4 | November 4 | 214 days | 7b |
| Newark | April 7 | November 2 | 208 days | 7b |
| Middletown | April 7 | November 2 | 208 days | 7b |
| Bear | April 7 | November 1 | 209 days | 7b |
| Brookside | April 7 | November 2 | 208 days | 7b |
| Glasgow | April 7 | November 2 | 208 days | 7b |
| Hockessin | April 19 | October 26 | 189 days | 7a |
| Smyrna | April 4 | November 4 | 214 days | 7b |
| Pike Creek Valley | April 7 | November 2 | 208 days | 7b |
| Milford | April 11 | October 30 | 200 days | 7b |
| Claymont | March 30 | November 16 | 230 days | 7b |
| North Star | April 7 | November 2 | 208 days | 7a |
| Pike Creek | April 7 | November 2 | 208 days | 7b |
| Wilmington Manor | April 7 | November 1 | 209 days | 7b |
| Seaford | April 11 | October 30 | 200 days | 7b |
| Georgetown | April 4 | November 6 | 217 days | 7b |
| Elsmere | April 7 | November 4 | 209 days | 7b |
| Edgemoor | April 7 | November 4 | 209 days | 7b |
| New Castle | April 7 | November 1 | 209 days | 7b |
When to Plant in Delaware
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias