When to Plant Potatoes in Washington
In a typical Washington location, sow outdoors Feb 24 – Mar 10. Across the state, the outdoor planting window starts as early as Feb 1 in Port Townsend and as late as May 2 in Cheney.
Plant seed potatoes 2-4 weeks before last frost, as soon as soil can be worked and is above 45F; light frost on emerging foliage is usually tolerated.
Potatoes Planting Dates by City
| City | Direct sow |
|---|---|
| Seattle | Feb 13 – Feb 27 |
| Tri-Cities | Mar 30 – Apr 13 |
| Spokane | Mar 29 – Apr 12 |
| Tacoma | Feb 8 – Feb 22 |
| Vancouver | Mar 1 – Mar 15 |
| Bellevue | Feb 8 – Feb 22 |
| Kent | Feb 20 – Mar 6 |
| Everett | Feb 24 – Mar 10 |
| Renton | Feb 13 – Feb 27 |
| Federal Way | Feb 8 – Feb 22 |
| Spokane Valley | Mar 29 – Apr 12 |
| Yakima | Apr 10 – Apr 24 |
| Kirkland | Feb 8 – Feb 22 |
| Bellingham | Mar 4 – Mar 18 |
| Kennewick | Feb 28 – Mar 14 |
| Auburn | Feb 20 – Mar 6 |
| Pasco | Feb 28 – Mar 14 |
| Marysville | Feb 24 – Mar 10 |
| Redmond | Feb 8 – Feb 22 |
| Lakewood | Feb 11 – Feb 25 |
| Olympia | Apr 1 – Apr 15 |
| Shoreline | Feb 8 – Feb 22 |
| Richland | Mar 9 – Mar 23 |
| South Hill | Mar 14 – Mar 28 |
| Sammamish | Feb 8 – Feb 22 |
| Burien | Feb 2 – Feb 16 |
| Lacey | Apr 1 – Apr 15 |
| City of Sammamish | Mar 2 – Mar 16 |
| Bothell | Feb 8 – Feb 22 |
| Edmonds | Feb 9 – Feb 23 |
Showing the 30 most populous of 133 Washington cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Washington cities.
Frequently Asked Questions
When should I plant potatoes in Washington?
In a typical Washington location, sow outdoors Feb 24 – Mar 10. Across the state, the outdoor planting window starts as early as Feb 1 in Port Townsend and as late as May 2 in Cheney.
When is the last frost in Washington?
The average last spring frost in Washington ranges from March 1 in Port Townsend to May 30 in Cheney, based on NOAA 1991–2020 climate normals.
How long do potatoes take to grow?
Potatoes typically take 70–120 days from planting to harvest. Plant seed potatoes 2-4 weeks before last frost, as soon as soil can be worked and is above 45F; light frost on emerging foliage is usually tolerated.
Other Crops in Washington
- 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
- Sweet Potatoes
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant potatoes in other states