When to Plant Arugula in Montana
In a typical Montana location, sow outdoors Apr 16 – Apr 30. Across the state, the outdoor planting window starts as early as Apr 7 in Laurel and as late as May 16 in Butte. For a fall crop, plant around Aug 17 – Aug 24.
Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.
Arugula Planting Dates by City
| City | Direct sow | Fall planting |
|---|---|---|
| Billings | Apr 12 – Apr 26 | Aug 20 – Aug 27 |
| Missoula | Apr 12 – Apr 26 | Aug 20 – Aug 27 |
| Great Falls | Apr 8 – Apr 22 | Aug 20 – Aug 27 |
| Bozeman | Apr 28 – May 12 | Aug 11 – Aug 18 |
| Butte | May 16 – May 30 | Jul 25 – Aug 1 |
| Helena | Apr 11 – Apr 25 | Aug 19 – Aug 26 |
| Kalispell | May 3 – May 17 | Jul 30 – Aug 6 |
| Havre | Apr 17 – May 1 | Aug 12 – Aug 19 |
| Anaconda | May 4 – May 18 | Aug 3 – Aug 10 |
| Miles City | Apr 10 – Apr 24 | Aug 19 – Aug 26 |
| Helena Valley Southeast | Apr 11 – Apr 25 | Aug 19 – Aug 26 |
| Belgrade | Apr 28 – May 12 | Aug 5 – Aug 12 |
| Helena Valley West Central | Apr 11 – Apr 25 | Aug 19 – Aug 26 |
| Evergreen | May 3 – May 17 | Jul 30 – Aug 6 |
| Livingston | Apr 29 – May 13 | Aug 3 – Aug 10 |
| Whitefish | Apr 18 – May 2 | Aug 14 – Aug 21 |
| Laurel | Apr 7 – Apr 21 | Aug 22 – Aug 29 |
| Sidney | Apr 13 – Apr 27 | Aug 16 – Aug 23 |
| Lockwood | Apr 12 – Apr 26 | Aug 20 – Aug 27 |
| Lewistown | Apr 16 – Apr 30 | Aug 17 – Aug 24 |
Showing the 20 most populous of 20 Montana cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Montana cities.
Frequently Asked Questions
When should I plant arugula in Montana?
In a typical Montana location, sow outdoors Apr 16 – Apr 30. Across the state, the outdoor planting window starts as early as Apr 7 in Laurel and as late as May 16 in Butte. For a fall crop, plant around Aug 17 – Aug 24.
When is the last frost in Montana?
The average last spring frost in Montana ranges from May 5 in Laurel to June 13 in Butte, based on NOAA 1991–2020 climate normals.
How long do arugula take to grow?
Arugula typically take 30–40 days from planting to harvest. Fast-growing, cold-tolerant green; direct sow 2-4 weeks before last frost, succession sow every 2-3 weeks.
Other Crops in Montana
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- 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
When to plant arugula in other states