Planting Calendar for Missoula, MT

On average, your last spring frost occurs on May 24 (at MISSOULA 2 NE, MT climate station).
Crop Based on Frost Dates   Based on Moon Dates
Start Seeds IndoorsPlant Seedlings
or Transplants
Start Seeds Outdoors
BeansN/AN/A May 31-Jun 21
May 31-Jun 5, Jun 21
BeetsN/AN/A May 10-31
May 10-21
Bell Peppers Mar 15-29
Mar 24-29
Jun 7-28
Jun 21-28
N/A
Broccoli Apr 12-26
Apr 22-26
May 3-24
May 3- 7, May 22-24
N/A
Brussels Sprouts Apr 12-26
Apr 22-26
Apr 26-May 17
Apr 26-May 7
N/A
Cabbage Mar 29-Apr 12
Mar 29-Apr 7
Apr 26-May 10
Apr 26-May 7
N/A
Cantaloupes Apr 26-May 3
Apr 26-May 3
Jun 7-28
Jun 21-28
N/A
CarrotsN/AN/A Apr 19-May 3
Apr 19-21
Cauliflower Apr 12-26
Apr 22-26
Apr 26-May 10
Apr 26-May 7
N/A
Celery Mar 15-29
Mar 24-29
May 31-Jun 14
May 31-Jun 5
N/A
Collards Apr 12-26
Apr 22-26
Apr 26-May 17
Apr 26-May 7
N/A
CornN/AN/A May 24-Jun 7
May 24-Jun 5
Cucumbers Apr 26-May 3
Apr 26-May 3
Jun 7-28
Jun 21-28
N/A
Eggplants Mar 15-29
Mar 24-29
Jun 7-28
Jun 21-28
N/A
Lettuce Apr 12-26
Apr 22-26
May 10-Jun 7
May 22-Jun 5
N/A
KohlrabiN/AN/A Apr 26-May 17
Apr 26-May 7
Leeks Mar 15-29
Mar 24-29
Apr 26-May 17
Apr 26-May 7
N/A
OkraN/AN/A Jun 7-21
Jun 21
OnionsN/AN/A Apr 26-May 17
May 8-17
ParsnipsN/AN/A May 3-24
May 8-21
PeasN/AN/A Apr 12-May 3
Apr 22-May 3
PotatoesN/AN/A May 17-Jun 7
May 17-21, Jun 6- 7
Pumpkins Apr 26-May 10
Apr 26-May 7
Jun 7-28
Jun 21-28
N/A
RadishesN/AN/A Mar 29-Apr 19
Apr 8-19
SpinachN/AN/A Apr 12-May 3
Apr 22-May 3
Squash (Zucchini) Apr 26-May 10
Apr 26-May 7
Jun 7-28
Jun 21-28
N/A
Sweet Potatoes Apr 26-May 3
Jun 7-28
Jun 7-20
N/A
Swiss Chard Apr 12-26
Apr 22-26
May 3-10
May 3- 7
N/A
Tomatoes Mar 29-Apr 12
Mar 29-Apr 7
May 31-Jun 21
May 31-Jun 5, Jun 21
N/A
TurnipsN/AN/A Apr 26-May 17
May 8-17
Watermelons Apr 26-May 3
Apr 26-May 3
Jun 7-28
Jun 21-28
N/A

Find the best dates for planting vegetables and fruit in your garden! Our free planting calendar calculates the best time to start seeds indoors and outdoors, as well as when to plant young plants outside.

How to Use the Planting Calendar

Simply put, a planting calendar is a guide that tells you the best time to start planting your garden. Most planting calendars are based on frost dates, which dictate when you should start seeds and when it's safe to plant outdoors in your area. Our planting calendar is customized to your location in order to give you the most accurate information possible.

On the planting calendar below, please note:

  • The Frost Dates indicate the best planting dates based on your local average frost dates. Average frost dates are based on historical weather data and are the planting guideline used by most gardeners.
  • The Moon Dates indicate the best planting dates based on your local frost dates and Moon phases. Planting by the Moon is considered a more traditional technique.
  • The Plant Seedlings or Transplants dates indicate the best time to plant young plants outdoors. This includes plants grown from seed at home and plants bought from a nursery. Although frost dates are a good way to know approximately when to start gardening, always check a local forecast before planting outdoors!
  • When no dates appear in the chart, that starting method is not recommended for that particular plant. Some crops do best when started outdoors rather than indoors, while others prefer the opposite.
  • Click on the name of a plant to see our corresponding Growing Guide.

To plan your garden more accurately in the future, keep a record of your garden's conditions each year, including frost dates and seed-starting dates!