When to Plant Thyme in North Dakota
In a typical North Dakota location, start seeds indoors Mar 15 – Mar 29, then transplant outdoors May 10 – May 17. Across the state, the outdoor planting window starts as early as May 4 in Wahpeton and as late as May 21 in Beulah.
Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.
Thyme Planting Dates by City
| City | Start indoors | Transplant |
|---|---|---|
| Fargo | Mar 10 – Mar 24 | May 5 – May 12 |
| Bismarck | Mar 15 – Mar 29 | May 10 – May 17 |
| Grand Forks | Mar 15 – Mar 29 | May 10 – May 17 |
| Minot | Mar 15 – Mar 29 | May 10 – May 17 |
| West Fargo | Mar 15 – Mar 29 | May 10 – May 17 |
| Williston | Mar 26 – Apr 9 | May 21 – May 28 |
| Dickinson | Mar 25 – Apr 8 | May 20 – May 27 |
| Mandan | Mar 18 – Apr 1 | May 13 – May 20 |
| Jamestown | Mar 13 – Mar 27 | May 8 – May 15 |
| Wahpeton | Mar 9 – Mar 23 | May 4 – May 11 |
| Devils Lake | Mar 11 – Mar 25 | May 6 – May 13 |
| Watford City | Mar 14 – Mar 28 | May 9 – May 16 |
| Valley City | Mar 18 – Apr 1 | May 13 – May 20 |
| Minot Air Force Base | Mar 16 – Mar 30 | May 11 – May 18 |
| Grafton | Mar 9 – Mar 23 | May 4 – May 11 |
| Lincoln | Mar 19 – Apr 2 | May 14 – May 21 |
| Beulah | Mar 26 – Apr 9 | May 21 – May 28 |
| Rugby | Mar 22 – Apr 5 | May 17 – May 24 |
| Stanley | Mar 22 – Apr 5 | May 17 – May 24 |
| Horace | Mar 9 – Mar 23 | May 4 – May 11 |
Showing the 20 most populous of 20 North Dakota cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all North Dakota cities.
Frequently Asked Questions
When should I plant thyme in North Dakota?
In a typical North Dakota location, start seeds indoors Mar 15 – Mar 29, then transplant outdoors May 10 – May 17. Across the state, the outdoor planting window starts as early as May 4 in Wahpeton and as late as May 21 in Beulah.
When is the last frost in North Dakota?
The average last spring frost in North Dakota ranges from May 4 in Wahpeton to May 21 in Beulah, based on NOAA 1991–2020 climate normals.
How long do thyme take to grow?
Thyme typically take 85–95 days from planting to harvest. Perennial herb, slow from seed; start indoors 6-8 weeks before last frost, transplant around/after last frost.
Other Crops in North 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
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant thyme in other states