When to Plant Vegetables in Post Falls, Idaho

Your vegetable planning guide for Post Falls, Idaho

On average, your frost-free growing season starts May 6 and ends Oct 5, totalling 152 days. You will find both Spring and Fall planting guides on this page.

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For the Spring:
Your Spring Planting Strategy
Cole crops like broccoli, cauliflower, and cabbage can be direct seeded into your garden around March 25, assuming the ground can be worked, but it's better to start them indoors around February 26 and then transplant them into the garden around April 16. Do the same with lettuce and spinach.

Plant onion starts and potatoes around March 7. Sow the seeds of peas (sugar snap and english) at the same time. If the ground is still frozen, then plant these as soon as the ground thaws.

Do you want to grow tomatoes, peppers, and eggplants? Start these indoors around February 26. Then, around May 2 you should start watching the weather forecast and, as soon as no frost is forecast, go ahead and transplant those into the ground.

Now, for all the summer vegetables like beans, cowpeas, corn, squashes, pumpkins, cucumbers, watermelons, gourds and sunflowers, you should plant those seeds directly into the ground around May 6, or if your soil is still very cold, once the soil is near 60° F in temperature. Having said that, we note that your location has a shorter than average growing season. Many summer vegetables need more days to mature than your area will provide. For that reason, we recommend you get a head-start by starting these summer vegetables indoors around April 16, and transplant those seedlings out after the danger of frost is past.

Okay, now here are the cold, hard numbers, along with specific plants:

Crop Sow seeds indoors Transplant seedlings into the garden Direct sow seeds
Asparagus n/a Mar 22 - Apr 6 n/a
Beans n/a n/a May 6 - Jun 3
Beets n/a n/a Mar 11 - Mar 25
Broccoli Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Brussel Sprouts Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Cabbage Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Cantaloupe n/a n/a Apr 22 - May 6
Carrots n/a n/a Mar 25 - Apr 22
Cauliflower Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Chard n/a n/a Mar 25 - Apr 8
Collards Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Corn n/a n/a May 6 - May 20
Cucumbers n/a n/a May 6 - May 20
Eggplants Feb 26 - Mar 11 May 6 - May 20 n/a
Gourds, Squash and Pumpkins n/a n/a May 6 - May 20
Kale Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Kohlrabi Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Lettuce Feb 26 - Mar 11 Mar 25 - Apr 22 Mar 25 - Apr 22
Mustard Feb 26 - Mar 11 Apr 8 - Apr 22 n/a
Okra n/a n/a May 6 - May 20
Onions Feb 19 - Feb 26 Mar 7 - Apr 6 n/a
Peas (English) n/a n/a Mar 7 - Apr 6
Peas (Southern) n/a n/a May 6 - Jun 3
Peas (Sugar Snap) n/a n/a Mar 7 - Apr 6
Peppers Feb 26 - Mar 11 May 6 - May 20 n/a
Potatoes n/a n/a Mar 7 - Apr 6
Radishes n/a n/a Mar 22 - May 20
Spinach Feb 26 - Mar 11 Apr 8 - Apr 22 Mar 22 - Apr 22
Sweet Potatoes n/a May 6 - May 27 n/a
Tomatoes Feb 26 - Mar 11 May 6 - May 20 n/a
Watermelon n/a n/a May 6 - May 20

For the Fall:
Your Fall Planting Strategy
Gardening in the fall can be much more challenging than spring planting, because you are in a race to get your crops mature and harvested before the winter frosts begin, around October 5. This means you need to consider how much time each variety needs between planting and picking. Those numbers vary widely between different varieties of the same kinds of plants! Usually the "Days to Harvest" are present on the seed packet.

Most tomatoes, peppers and eggplants, for example, require around 100 days to harvest, therefore you'd want to transplant those into the ground around June 27. Anyway, it's important to remember that the numbers in this fall planting guide are only a starting point for you! Good luck and good gardening to you.

Fall is the time to plant garlic. Around August 21, take your cloves apart and plant the toes about 3 to 4 inches deep. This may not be accurate! Garlic dates vary wildly around the country. The way to be sure is to use a soil thermometer. When the soil temperature is 60° at a depth of 4 inches, then plant your garlic.

Cole crops like broccoli, cauliflower, and cabbage can be direct seeded into your garden around July 27, but because of the heat during that time of year, it's better to start them indoors around June 7 and then transplant them into the garden around July 17. Do the same with lettuce and spinach.

Sow peas directly around July 22.

Now, for all the usual hot weather veggies like beans, cowpeas, corn, squashes, pumpkins, cucumbers, watermelons, gourds and sunflowers, you should plant those seeds directly into the ground around June 22.

Okay, now here are the cold, hard numbers, along with specific plants:

Crop Sow seeds indoors Transplant seedlings into the garden Direct sow seeds
Beans n/a n/a Jun 22 - Jul 22
Beets n/a n/a Jul 22 - Sep 5
Broccoli May 11 - Jun 25 Jun 22 - Aug 6 n/a
Brussel Sprouts May 11 - Jun 25 Jun 22 - Aug 6 n/a
Cabbage May 11 - Jun 25 Jun 22 - Aug 6 n/a
Cantaloupe n/a n/a Jun 7 - Jun 22
Carrots n/a n/a Jul 7 - Sep 5
Cauliflower May 11 - Jun 25 Jun 22 - Aug 6 n/a
Chard n/a n/a Jun 22 - Sep 5
Collards Jun 7 - Jul 22 Jul 7 - Aug 21 n/a
Corn n/a n/a Jun 22 - Jul 7
Cucumbers n/a n/a Jun 22 - Jul 7
Eggplants Apr 26 - May 11 Jun 7 - Jun 22 n/a
Garlic n/a n/a Jul 22 - Sep 5
Gourds, Squash and Pumpkins n/a n/a May 23 - Jun 22
Kale May 11 - Jun 25 Jun 22 - Aug 6 n/a
Kohlrabi May 11 - Jun 25 Jun 22 - Aug 6 n/a
Lettuce Jul 7 - Aug 6 Aug 6 - Sep 5 Aug 6 - Sep 5
Mustard n/a n/a Aug 6 - Sep 5
Okra n/a n/a May 23 - Jun 22
Onions n/a n/a Sep 5 - Sep 15
Parsley May 23 - Jul 7 Jul 7 - Aug 21 n/a
Peas (English) n/a n/a Jul 7 - Aug 6
Peas (Southern) n/a n/a May 23 - Jun 22
Peas (Sugar Snap) n/a n/a Jul 7 - Aug 6
Peppers May 1 - May 16 Jun 12 - Jun 27 n/a
Potatoes n/a n/a Jul 7 - Aug 6
Radishes n/a n/a Aug 6 - Sep 5
Spinach Jun 22 - Aug 6 Jul 22 - Sep 5 Jul 22 - Sep 5
Tomatoes May 1 - May 16 Jun 12 - Jun 27 n/a
Turnips n/a n/a Aug 21 - Sep 20
Watermelon n/a n/a May 23 - Jun 22

How accurate is all this? For nearly all locations, we are confident in the dates. There are, however, some difficult areas of the world that don't match up perfectly with the dates we have given. For that reason, we recommend you use this guide as a very good starting place, but don't interpret the dates as absolutely perfect for every location.

Did you find this useful? Garden.org has a vast array of useful features. May we recommend that you take a look at our excellent food gardening guide?

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