When to Plant Corn in Oregon
In a typical Oregon location, sow outdoors Apr 3 – Apr 17. Across the state, the outdoor planting window starts as early as Feb 11 in Beaverton and as late as Jun 9 in Altamont.
Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks.
Corn Planting Dates by City
| City | Direct sow |
|---|---|
| Portland | Feb 25 – Mar 11 |
| Eugene | Apr 11 – Apr 25 |
| Salem | Apr 3 – Apr 17 |
| Gresham | Mar 16 – Mar 30 |
| Hillsboro | Apr 16 – Apr 30 |
| Beaverton | Feb 11 – Feb 25 |
| Bend | Jun 6 – Jun 20 |
| Medford | Apr 8 – Apr 22 |
| Springfield | Apr 11 – Apr 25 |
| Corvallis | Apr 17 – May 1 |
| Albany | Apr 17 – May 1 |
| Tigard | Apr 1 – Apr 15 |
| Aloha | Feb 11 – Feb 25 |
| Lake Oswego | Mar 18 – Apr 1 |
| Keizer | Apr 3 – Apr 17 |
| Grants Pass | Apr 8 – Apr 22 |
| Oregon City | Mar 18 – Apr 1 |
| McMinnville | Apr 5 – Apr 19 |
| Redmond | Jun 9 – Jun 23 |
| Tualatin | Apr 1 – Apr 15 |
| West Linn | Mar 18 – Apr 1 |
| Woodburn | Mar 16 – Mar 30 |
| Forest Grove | Apr 16 – Apr 30 |
| Newberg | Mar 21 – Apr 4 |
| Wilsonville | Mar 18 – Apr 1 |
| Roseburg | Mar 23 – Apr 6 |
| Klamath Falls | Jun 9 – Jun 23 |
| Ashland | May 6 – May 20 |
| Milwaukie | Feb 25 – Mar 11 |
| Bethany | Apr 16 – Apr 30 |
Showing the 30 most populous of 68 Oregon cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Oregon cities.
Frequently Asked Questions
When should I plant corn in Oregon?
In a typical Oregon location, sow outdoors Apr 3 – Apr 17. Across the state, the outdoor planting window starts as early as Feb 11 in Beaverton and as late as Jun 9 in Altamont.
When is the last frost in Oregon?
The average last spring frost in Oregon ranges from February 11 in Beaverton to June 9 in Altamont, based on NOAA 1991–2020 climate normals.
How long do corn take to grow?
Corn typically take 60–100 days from planting to harvest. Direct sow at last frost to 2 weeks after, once soil reaches 60F; does not transplant well. Succession sow every 2 weeks.
Other Crops in Oregon
- Tomatoes
- Peppers
- Eggplant
- Cucumbers
- Zucchini
- Winter Squash
- Pumpkins
- Watermelon
- Cantaloupe
- 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 corn in other states