When to Plant Kale in Idaho
In a typical Idaho location, sow outdoors Apr 2 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 9 in Lewiston and as late as Apr 19 in Eagle. For a fall crop, plant around Aug 5 – Aug 19. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.
Cold-hardy; direct sow 2-4 weeks before last frost or start indoors for earlier transplants.
Kale Planting Dates by City
| City | Direct sow | Fall planting |
|---|---|---|
| Boise | Mar 27 – Apr 10 | Aug 12 – Aug 26 |
| Meridian | Mar 27 – Apr 10 | Aug 12 – Aug 26 |
| Nampa | Apr 1 – Apr 15 | Aug 4 – Aug 18 |
| Idaho Falls | Apr 11 – Apr 25 | Jul 23 – Aug 6 |
| Pocatello | Apr 4 – Apr 18 | Aug 2 – Aug 16 |
| Caldwell | Mar 26 – Apr 9 | Aug 9 – Aug 23 |
| Coeur d'Alene | Mar 25 – Apr 8 | Aug 9 – Aug 23 |
| Twin Falls | Apr 2 – Apr 16 | Jul 31 – Aug 14 |
| Lewiston | Mar 9 – Mar 23 | Aug 17 – Aug 31 |
| Lewiston Orchards | Mar 9 – Mar 23 | Aug 17 – Aug 31 |
| Post Falls | Mar 25 – Apr 8 | Aug 9 – Aug 23 |
| Rexburg | Apr 17 – May 1 | Jul 15 – Jul 29 |
| Moscow | Frost-free: year-round planting | |
| Eagle | Apr 19 – May 3 | Aug 3 – Aug 17 |
| Conda | Frost-free: year-round planting | |
| Kuna | Mar 27 – Apr 10 | Aug 12 – Aug 26 |
| Ammon | Apr 11 – Apr 25 | Jul 23 – Aug 6 |
| Chubbuck | Apr 4 – Apr 18 | Aug 2 – Aug 16 |
| Hayden | Mar 25 – Apr 8 | Aug 9 – Aug 23 |
| Mountain Home | Apr 4 – Apr 18 | Jul 30 – Aug 13 |
| Blackfoot | Apr 7 – Apr 21 | Jul 25 – Aug 8 |
| Garden City | Mar 27 – Apr 10 | Aug 12 – Aug 26 |
| Jerome | Apr 4 – Apr 18 | Aug 5 – Aug 19 |
| Burley | Apr 9 – Apr 23 | Jul 26 – Aug 9 |
Showing the 24 most populous of 24 Idaho cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Idaho cities.
Frequently Asked Questions
When should I plant kale in Idaho?
In a typical Idaho location, sow outdoors Apr 2 – Apr 16. Across the state, the outdoor planting window starts as early as Mar 9 in Lewiston and as late as Apr 19 in Eagle. For a fall crop, plant around Aug 5 – Aug 19. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.
When is the last frost in Idaho?
The average last spring frost in Idaho ranges from April 6 in Lewiston to May 17 in Eagle, based on NOAA 1991–2020 climate normals.
How long do kale take to grow?
Kale typically take 50–65 days from planting to harvest. Cold-hardy; direct sow 2-4 weeks before last frost or start indoors for earlier transplants.
Other Crops in Idaho
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Arugula
- 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 kale in other states