When to Plant Sweet Potatoes in Maryland
In a typical Maryland location, plant outdoors Apr 17 – May 1. Across the state, the outdoor planting window starts as early as Apr 5 in California and as late as May 8 in Westminster.
Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Sweet Potatoes Planting Dates by City
| City | Plant outdoors |
|---|---|
| Baltimore | Apr 7 – Apr 21 |
| Columbia | Apr 24 – May 8 |
| Germantown | Apr 28 – May 12 |
| Silver Spring | Apr 24 – May 8 |
| Frederick | Apr 16 – Apr 30 |
| Waldorf | Apr 17 – May 1 |
| Glen Burnie | Apr 24 – May 8 |
| Gaithersburg | Apr 15 – Apr 29 |
| Rockville | Apr 15 – Apr 29 |
| Ellicott City | Apr 24 – May 8 |
| Dundalk | Apr 7 – Apr 21 |
| Bethesda | Apr 23 – May 7 |
| Bowie | May 6 – May 20 |
| Towson | Apr 16 – Apr 30 |
| Aspen Hill | Apr 15 – Apr 29 |
| Wheaton | Apr 15 – Apr 29 |
| Bel Air South | Apr 24 – May 8 |
| Gwynn Oak | Apr 16 – Apr 30 |
| Potomac | Apr 15 – Apr 29 |
| Severn | Apr 24 – May 8 |
| North Bethesda | Apr 15 – Apr 29 |
| Catonsville | Apr 7 – Apr 21 |
| Annapolis | Apr 10 – Apr 24 |
| Hagerstown | Apr 25 – May 9 |
| Essex | Apr 7 – Apr 21 |
| Hanover | Apr 24 – May 8 |
| Woodlawn | Apr 16 – Apr 30 |
| Severna Park | Apr 10 – Apr 24 |
| Odenton | Apr 24 – May 8 |
| Saint Charles | Apr 17 – May 1 |
Showing the 30 most populous of 151 Maryland cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Maryland cities.
Frequently Asked Questions
When should I plant sweet potatoes in Maryland?
In a typical Maryland location, plant outdoors Apr 17 – May 1. Across the state, the outdoor planting window starts as early as Apr 5 in California and as late as May 8 in Westminster.
When is the last frost in Maryland?
The average last spring frost in Maryland ranges from March 22 in California to April 24 in Westminster, based on NOAA 1991–2020 climate normals.
How long do sweet potatoes take to grow?
Sweet Potatoes typically take 90–120 days from planting to harvest. Set out slips 2-4 weeks after last frost once soil is thoroughly warm (65F+); very frost/cold sensitive.
Other Crops 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
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant sweet potatoes in other states