When to Plant Nasturtiums in South Dakota
In a typical South Dakota location, sow outdoors May 13 – May 27. Across the state, the outdoor planting window starts as early as May 3 in Tea and as late as May 19 in Ellsworth Air Force Base.
Frost-tender, resents root disturbance; direct sow 1-3 weeks after last frost once soil has warmed.
Nasturtiums Planting Dates by City
| City | Direct sow |
|---|---|
| Sioux Falls | May 8 – May 22 |
| Rapid City | May 10 – May 24 |
| Aberdeen | May 15 – May 29 |
| Brookings | May 13 – May 27 |
| Watertown | May 14 – May 28 |
| Mitchell | May 9 – May 23 |
| Yankton | May 4 – May 18 |
| Pierre | May 13 – May 27 |
| Huron | May 13 – May 27 |
| Spearfish | May 19 – Jun 2 |
| Vermillion | May 10 – May 24 |
| Brandon | May 8 – May 22 |
| Box Elder | May 19 – Jun 2 |
| Rapid Valley | May 10 – May 24 |
| Ellsworth Air Force Base | May 19 – Jun 2 |
| Madison | May 12 – May 26 |
| Sturgis | May 15 – May 29 |
| Belle Fourche | May 17 – May 31 |
| Harrisburg | May 9 – May 23 |
| Tea | May 3 – May 17 |
Showing the 20 most populous of 20 South Dakota cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all South Dakota cities.
Frequently Asked Questions
When should I plant nasturtiums in South Dakota?
In a typical South Dakota location, sow outdoors May 13 – May 27. Across the state, the outdoor planting window starts as early as May 3 in Tea and as late as May 19 in Ellsworth Air Force Base.
When is the last frost in South Dakota?
The average last spring frost in South Dakota ranges from April 26 in Tea to May 12 in Ellsworth Air Force Base, based on NOAA 1991–2020 climate normals.
How long do nasturtiums take to grow?
Nasturtiums typically take 50–65 days from planting to harvest. Frost-tender, resents root disturbance; direct sow 1-3 weeks after last frost once soil has warmed.
Other Crops in South Dakota
- 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
- Dahlias
When to plant nasturtiums in other states