When to Plant Asparagus in Idaho
In a typical Idaho location, plant 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. 2 cities in Idaho are essentially frost-free and can plant on a year-round schedule.
Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.
Asparagus Planting Dates by City
| City | Plant outdoors |
|---|---|
| Boise | Mar 27 – Apr 10 |
| Meridian | Mar 27 – Apr 10 |
| Nampa | Apr 1 – Apr 15 |
| Idaho Falls | Apr 11 – Apr 25 |
| Pocatello | Apr 4 – Apr 18 |
| Caldwell | Mar 26 – Apr 9 |
| Coeur d'Alene | Mar 25 – Apr 8 |
| Twin Falls | Apr 2 – Apr 16 |
| Lewiston | Mar 9 – Mar 23 |
| Lewiston Orchards | Mar 9 – Mar 23 |
| Post Falls | Mar 25 – Apr 8 |
| Rexburg | Apr 17 – May 1 |
| Moscow | Frost-free: year-round planting |
| Eagle | Apr 19 – May 3 |
| Conda | Frost-free: year-round planting |
| Kuna | Mar 27 – Apr 10 |
| Ammon | Apr 11 – Apr 25 |
| Chubbuck | Apr 4 – Apr 18 |
| Hayden | Mar 25 – Apr 8 |
| Mountain Home | Apr 4 – Apr 18 |
| Blackfoot | Apr 7 – Apr 21 |
| Garden City | Mar 27 – Apr 10 |
| Jerome | Apr 4 – Apr 18 |
| Burley | Apr 9 – Apr 23 |
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 asparagus in Idaho?
In a typical Idaho location, plant 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. 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 asparagus take to grow?
Asparagus typically take 730–1095 days from planting to harvest. Perennial; plant crowns 2-4 weeks before last frost as soon as soil can be worked. Takes 2-3 years to full production.
Other Crops in Idaho
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- Corn
- Green Beans
- Peas
- Lettuce
- Spinach
- Kale
- Arugula
- Swiss Chard
- Broccoli
- Cauliflower
- Cabbage
- Brussels Sprouts
- Carrots
- Beets
- Radishes
- Turnips
- Onions
- Garlic
- Potatoes
- Sweet Potatoes
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant asparagus in other states