Montana: Vegetable Planting Calendar
Planting vegetable seeds or transplants at the correct time is important for getting the most out of your garden. Knowing your first and last frost dates will help you start your vegetable seeds at the right time.
Montana is in USDA plant hardiness zones 3-6.
Learning Download: Growing in Montana
Montana Last & First Frost Dates
| City | Last Frost Date | First Frost Date |
| Billings | 5/29 | 9/6 |
| Bozeman | 6/19 | 8/31 |
| Butte | 7/1 | 8/23 |
| Chinook | 5/29 | 9/3 |
| Choteau | 6/8 | 9/4 |
| Glendive | 5/19 | 9/10 |
| Hamilton | 6/12 | 9/6 |
| Helena | 6/2 | 9/2 |
| Libby | 7/12 | 8/19 |
*Based on statistics there is a 10% chance that frost will occur before or after these dates. Watch your local weather for more accurate dates.
Montana on average has approximately 95 days between the last and first frost. Follow the planting schedules below for when to plant tomatoes, peppers and other vegetables.
Zone 3 Planting Schedule
Zone 4 Planting Schedule
Zone 5 Planting Schedule
Zone 6 Planting Schedule
