Planting Calendar for Mountain Home, ID

30% probability of frost free after May 16 (at MTN HOME, ID climate station).
Crop Based on Frost Dates   Based on Moon Dates
Start Seeds IndoorsTransplant SeedlingsStart Seeds Outdoors
Beans May 23-Jun 13
Jun 3-13
Beets May 2-23
May 2- 3, May 19-23
Broccoli Apr 4-18
Apr 5-18
Apr 25-May 16
May 4-16
Brussels Sprouts Apr 4-18
Apr 5-18
Apr 18-May 9
Apr 18-19, May 4- 9
Cabbage Mar 21-Apr 4
Apr 18-May 2
Apr 18-19
Cantaloupe Apr 18-25
Apr 18-19
May 30-Jun 20
Jun 3-17
Carrots Apr 11-25
Apr 20-25
Cauliflower Apr 4-18
Apr 5-18
Apr 18-May 2
Apr 18-19
Celery Mar 6-21
Mar 6-20
May 23-Jun 6
Jun 3- 6
Collards Apr 4-18
Apr 5-18
Apr 18-May 9
Apr 18-19, May 4- 9
Corn May 16-30
May 16-18
Cucumbers Apr 18-25
Apr 18-19
May 30-Jun 20
Jun 3-17
Eggplants Mar 6-21
Mar 6-20
May 30-Jun 20
Jun 3-17
Kale Apr 4-18
Apr 5-18
Apr 18-May 9
Apr 18-19, May 4- 9
Kohlrabi Apr 18-May 9
Apr 18-19, May 4- 9
Leeks Mar 6-21
Mar 6-20
Apr 18-May 9
Apr 18-19, May 4- 9
Lettuce Apr 4-18
Apr 5-18
May 2-30
May 4-18
Okra May 30-Jun 13
Jun 3-13
Onions Apr 18-May 9
Apr 20-May 3
Parsnips Apr 25-May 16
Apr 25-May 3
Peas Apr 4-25
Apr 5-19
Peppers Mar 6-21
Mar 6-20
May 30-Jun 20
Jun 3-17
Potatoes May 9-30
May 19-30
Pumpkins Apr 18-May 2
Apr 18-19
May 30-Jun 20
Jun 3-17
Radishes Mar 21-Apr 11
Mar 21-Apr 4
Spinach Apr 4-25
Apr 5-19
Squash Apr 18-May 2
Apr 18-19
May 30-Jun 20
Jun 3-17
Sweet Potatoes Apr 18-25
Apr 20-25
May 30-Jun 20
May 30-Jun 2, Jun 18-20
Swiss Chard Apr 4-18
Apr 5-18
Apr 25-May 2
Tomatoes Mar 21-Apr 4
May 23-Jun 13
Jun 3-13
Turnips Apr 18-May 9
Apr 20-May 3
Watermelons Apr 18-25
Apr 18-19
May 30-Jun 20
Jun 3-17

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 Transplant Seedlings 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!