Frost Dates & Planting Calendars in Maryland
In Maryland, the average last spring frost ranges from March 22 in California to April 24 in Westminster, and the average first fall frost from October 20 in Westminster to November 26 in Chesapeake Ranch Estates. 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 |
|---|---|---|---|---|
| Baltimore | March 24 | November 21 | 244 days | 8a |
| Columbia | April 10 | October 31 | 204 days | 7b |
| Germantown | April 14 | October 29 | 196 days | 7b |
| Silver Spring | April 10 | November 1 | 202 days | 7b |
| Frederick | April 2 | November 6 | 218 days | 7a |
| Waldorf | April 3 | November 8 | 217 days | 7b |
| Glen Burnie | April 10 | October 31 | 204 days | 7b |
| Gaithersburg | April 1 | November 6 | 219 days | 7b |
| Rockville | April 1 | November 6 | 219 days | 7b |
| Ellicott City | April 10 | October 31 | 204 days | 7b |
| Dundalk | March 24 | November 21 | 244 days | 8a |
| Bethesda | April 9 | October 31 | 202 days | 7b |
| Bowie | April 22 | October 22 | 183 days | 7b |
| Towson | April 2 | November 7 | 220 days | 7b |
| Aspen Hill | April 1 | November 6 | 219 days | 7b |
| Wheaton | April 1 | November 6 | 219 days | 7b |
| Bel Air South | April 10 | October 30 | 201 days | 7b |
| Gwynn Oak | April 2 | November 7 | 220 days | 7b |
| Potomac | April 1 | November 6 | 219 days | 7b |
| Severn | April 10 | October 31 | 204 days | 7b |
| North Bethesda | April 1 | November 6 | 219 days | 7b |
| Catonsville | March 24 | November 21 | 244 days | 7b |
| Annapolis | March 27 | November 13 | 234 days | 8a |
| Hagerstown | April 11 | October 28 | 199 days | 7a |
| Essex | March 24 | November 21 | 244 days | 8a |
| Hanover | April 10 | October 31 | 204 days | 7b |
| Woodlawn | April 2 | November 7 | 220 days | 7b |
| Severna Park | March 27 | November 13 | 234 days | 8a |
| Odenton | April 10 | October 31 | 204 days | 7b |
| Saint Charles | April 3 | November 8 | 217 days | 7b |
| Clinton | April 3 | November 8 | 217 days | 7b |
| Oxon Hill-Glassmanor | April 3 | November 8 | 217 days | 8a |
| Olney | April 1 | November 6 | 219 days | 7b |
| Suitland-Silver Hill | April 3 | November 8 | 217 days | 7b |
| Chillum | March 29 | November 8 | 224 days | 7b |
| St. Charles | April 17 | October 27 | 195 days | 7b |
| Salisbury | April 3 | November 7 | 217 days | 7b |
| Randallstown | April 2 | November 7 | 220 days | 7a |
| College Park | April 10 | November 1 | 202 days | 7b |
| Montgomery Village | April 1 | November 6 | 219 days | 7b |
| Pikesville | April 2 | November 7 | 220 days | 7b |
| Parkville | April 2 | November 7 | 220 days | 7b |
| Owings Mills | April 2 | November 7 | 220 days | 7a |
| Bel Air North | April 10 | October 30 | 201 days | 7b |
| Eldersburg | April 2 | November 7 | 220 days | 7a |
| Carney | April 2 | November 7 | 220 days | 7b |
| South Gate | April 10 | October 31 | 204 days | 7b |
| Milford Mill | April 2 | November 7 | 220 days | 7b |
| West Elkridge | April 10 | October 31 | 204 days | 7b |
| Perry Hall | April 2 | November 7 | 220 days | 7b |
| Crofton | April 22 | October 22 | 183 days | 7b |
| Laurel | April 5 | November 9 | 218 days | 7b |
| South Laurel | April 5 | November 9 | 218 days | 7b |
| Reisterstown | April 2 | November 7 | 220 days | 7a |
| Suitland | March 29 | November 8 | 224 days | 7b |
| Edgewood | April 10 | October 30 | 201 days | 7b |
| Lochearn | April 2 | November 7 | 220 days | 7b |
| Middle River | March 24 | November 21 | 244 days | 8a |
| North Potomac | April 1 | November 6 | 219 days | 7b |
| Scaggsville | April 5 | November 9 | 218 days | 7b |
| Pasadena | April 10 | October 31 | 204 days | 8a |
| Greenbelt | April 10 | November 1 | 202 days | 7b |
| Hunt Valley | April 2 | November 7 | 220 days | 7b |
| Fort Washington | April 3 | November 8 | 217 days | 8a |
| Fairland | April 5 | November 9 | 218 days | 7b |
| Ilchester | April 10 | October 31 | 204 days | 7b |
| Arnold | March 27 | November 13 | 234 days | 8a |
| Landover | March 29 | November 8 | 224 days | 7b |
| Cockeysville | April 2 | November 7 | 220 days | 7b |
| Arbutus | March 24 | November 21 | 244 days | 7b |
| Cumberland | April 15 | October 24 | 190 days | 7a |
| Lake Shore | March 27 | November 13 | 234 days | 8a |
| Green Haven | April 10 | October 31 | 204 days | 8a |
| Rosedale | March 24 | November 21 | 244 days | 8a |
| Camp Springs | April 3 | November 8 | 217 days | 7b |
| Langley Park | April 10 | November 1 | 202 days | 7b |
| Greater Upper Marlboro | April 9 | October 29 | 203 days | 7b |
| Westminster | April 24 | October 20 | 177 days | 7a |
| Hyattsville | March 29 | November 8 | 224 days | 7b |
| Ballenger Creek | April 2 | November 6 | 218 days | 7b |
| Lanham-Seabrook | April 22 | October 22 | 183 days | 7b |
| Calverton | April 10 | November 1 | 202 days | 7b |
| Oxon Hill | April 3 | November 8 | 217 days | 8a |
| Takoma Park | March 29 | November 8 | 224 days | 7b |
| White Oak | April 10 | November 1 | 202 days | 7b |
| Glassmanor | April 3 | November 8 | 217 days | 8a |
| Seabrook | April 22 | October 22 | 183 days | 7b |
| Beltsville | April 10 | November 1 | 202 days | 7b |
| Ferndale | April 10 | October 31 | 204 days | 7b |
| Easton | April 1 | November 7 | 220 days | 8a |
| Hillcrest Heights | April 3 | November 8 | 217 days | 7b |
| Maryland City | April 5 | November 9 | 218 days | 7b |
| Parole | March 27 | November 13 | 234 days | 8a |
| Lutherville-Timonium | April 2 | November 7 | 220 days | 7b |
| Elkton | April 7 | November 2 | 208 days | 7b |
| Elkridge | April 10 | October 31 | 204 days | 7b |
| Aberdeen | April 10 | October 30 | 201 days | 7b |
| East Riverdale | March 29 | November 8 | 224 days | 7b |
| Damascus | April 14 | October 29 | 196 days | 7b |
| Rossville | March 24 | November 21 | 244 days | 8a |
| Cloverly | April 5 | November 9 | 218 days | 7b |
| Adelphi | April 10 | November 1 | 202 days | 7b |
| Colesville | April 10 | November 1 | 202 days | 7b |
| Brooklyn Park | March 24 | November 21 | 244 days | 8a |
| Clarksburg | April 14 | October 29 | 196 days | 7a |
| Glenmont | April 1 | November 6 | 219 days | 7b |
| Havre de Grace | April 10 | October 30 | 201 days | 7b |
| Glenn Dale | April 22 | October 22 | 183 days | 7b |
| Kettering | April 9 | October 29 | 203 days | 7b |
| New Carrollton | April 22 | October 22 | 183 days | 7b |
| Canton | March 24 | November 21 | 244 days | 8a |
| Riviera Beach | April 10 | October 31 | 204 days | 8a |
| Joppatowne | April 10 | October 30 | 201 days | 7b |
| Kemp Mill | April 10 | November 1 | 202 days | 7b |
| Cambridge | April 1 | November 7 | 220 days | 8a |
| Forestville | April 9 | October 29 | 203 days | 7b |
| Overlea | April 2 | November 7 | 220 days | 7b |
| Green Valley | April 14 | October 29 | 196 days | 7a |
| Travilah | April 1 | November 6 | 219 days | 7b |
| Bennsville | April 3 | November 8 | 217 days | 7b |
| California | March 22 | November 26 | 248 days | 7b |
| Ocean Pines | April 7 | November 2 | 209 days | 7b |
| Lexington Park | March 29 | November 15 | 230 days | 8a |
| Chesapeake Ranch Estates-Drum Point | March 22 | November 26 | 248 days | 8a |
| Mays Chapel | April 2 | November 7 | 220 days | 7b |
| Walker Mill | March 29 | November 8 | 224 days | 7b |
| Mitchellville | April 22 | October 22 | 183 days | 7b |
| Summerfield | March 29 | November 8 | 224 days | 7b |
| Largo | April 9 | October 29 | 203 days | 7b |
| Halfway | April 11 | October 28 | 199 days | 7a |
| Rosaryville | April 9 | October 29 | 203 days | 7b |
| Accokeek | April 3 | November 8 | 217 days | 7b |
| Chesapeake Ranch Estates | March 22 | November 26 | 248 days | 8a |
| Linthicum | April 10 | October 31 | 204 days | 7b |
| Bel Air | April 10 | October 30 | 201 days | 7b |
| Lanham | April 22 | October 22 | 183 days | 7b |
| Timonium | April 2 | November 7 | 220 days | 7b |
| Coral Hills | March 29 | November 8 | 224 days | 7b |
| Lake Arbor | April 22 | October 22 | 183 days | 7b |
| Bladensburg | March 29 | November 8 | 224 days | 7b |
| Brock Hall | April 9 | October 29 | 203 days | 7b |
| Brooklyn | March 24 | November 21 | 244 days | 8a |
| Chevy Chase | April 9 | October 31 | 202 days | 7b |
| North Kensington | April 1 | November 6 | 219 days | 7b |
| White Marsh | March 24 | November 21 | 244 days | 8a |
| Fort George G Mead Junction | April 10 | October 31 | 204 days | 7b |
| Marlboro Village | April 9 | October 29 | 203 days | 7b |
| Mount Airy | April 14 | October 29 | 196 days | 7a |
| Fort Meade | April 10 | October 31 | 204 days | 7b |
| Friendly | April 3 | November 8 | 217 days | 7b |
| Urbana | April 14 | October 29 | 196 days | 7a |
When to Plant in Maryland
- 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