When to Plant Pumpkins in Washington
In a typical Washington location, sow outdoors Mar 31 – Apr 14. Across the state, the outdoor planting window starts as early as Mar 8 in Port Townsend and as late as Jun 6 in Cheney.
Direct sow 1-3 weeks after last frost; back-time from your first fall frost so the 90-120 day maturity window lands before it.
Pumpkins Planting Dates by City
| City | Direct sow |
|---|---|
| Seattle | Mar 20 – Apr 3 |
| Tri-Cities | May 4 – May 18 |
| Spokane | May 3 – May 17 |
| Tacoma | Mar 15 – Mar 29 |
| Vancouver | Apr 5 – Apr 19 |
| Bellevue | Mar 15 – Mar 29 |
| Kent | Mar 27 – Apr 10 |
| Everett | Mar 31 – Apr 14 |
| Renton | Mar 20 – Apr 3 |
| Federal Way | Mar 15 – Mar 29 |
| Spokane Valley | May 3 – May 17 |
| Yakima | May 15 – May 29 |
| Kirkland | Mar 15 – Mar 29 |
| Bellingham | Apr 8 – Apr 22 |
| Kennewick | Apr 4 – Apr 18 |
| Auburn | Mar 27 – Apr 10 |
| Pasco | Apr 4 – Apr 18 |
| Marysville | Mar 31 – Apr 14 |
| Redmond | Mar 15 – Mar 29 |
| Lakewood | Mar 18 – Apr 1 |
| Olympia | May 6 – May 20 |
| Shoreline | Mar 15 – Mar 29 |
| Richland | Apr 13 – Apr 27 |
| South Hill | Apr 18 – May 2 |
| Sammamish | Mar 15 – Mar 29 |
| Burien | Mar 9 – Mar 23 |
| Lacey | May 6 – May 20 |
| City of Sammamish | Apr 6 – Apr 20 |
| Bothell | Mar 15 – Mar 29 |
| Edmonds | Mar 16 – Mar 30 |
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 pumpkins in Washington?
In a typical Washington location, sow outdoors Mar 31 – Apr 14. Across the state, the outdoor planting window starts as early as Mar 8 in Port Townsend and as late as Jun 6 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 pumpkins take to grow?
Pumpkins typically take 90–120 days from planting to harvest. Direct sow 1-3 weeks after last frost; back-time from your first fall frost so the 90-120 day maturity window lands before it.
Other Crops in Washington
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- 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
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Sunflowers
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant pumpkins in other states