When to Plant Sunflowers in Oklahoma
In a typical Oklahoma location, sow outdoors Apr 9 – Apr 23. Across the state, the outdoor planting window starts as early as Mar 22 in Ardmore and as late as Apr 25 in Guymon.
Direct sow 1-3 weeks after last frost once soil has warmed; taprooted, resents transplanting.
Sunflowers Planting Dates by City
| City | Direct sow |
|---|---|
| Oklahoma City | Apr 11 – Apr 25 |
| Tulsa | Apr 7 – Apr 21 |
| Norman | Apr 7 – Apr 21 |
| Broken Arrow | Apr 8 – Apr 22 |
| Lawton | Apr 8 – Apr 22 |
| Edmond | Apr 9 – Apr 23 |
| Moore | Apr 11 – Apr 25 |
| Midwest City | Apr 9 – Apr 23 |
| Enid | Apr 13 – Apr 27 |
| Stillwater | Apr 12 – Apr 26 |
| Muskogee | Apr 14 – Apr 28 |
| Bartlesville | Apr 18 – May 2 |
| Owasso | Apr 7 – Apr 21 |
| Shawnee | Apr 6 – Apr 20 |
| Yukon | Apr 9 – Apr 23 |
| Ardmore | Mar 22 – Apr 5 |
| Ponca City | Apr 17 – May 1 |
| Bixby | Apr 8 – Apr 22 |
| Duncan | Apr 1 – Apr 15 |
| Del City | Apr 9 – Apr 23 |
| Jenks | Apr 6 – Apr 20 |
| Sapulpa | Apr 6 – Apr 20 |
| Mustang | Apr 11 – Apr 25 |
| Sand Springs | Apr 6 – Apr 20 |
| Bethany | Apr 9 – Apr 23 |
| Altus | Apr 12 – Apr 26 |
| Claremore | Apr 14 – Apr 28 |
| El Reno | Apr 13 – Apr 27 |
| McAlester | Apr 7 – Apr 21 |
| Ada | Apr 9 – Apr 23 |
Showing the 30 most populous of 48 Oklahoma cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Oklahoma cities.
Frequently Asked Questions
When should I plant sunflowers in Oklahoma?
In a typical Oklahoma location, sow outdoors Apr 9 – Apr 23. Across the state, the outdoor planting window starts as early as Mar 22 in Ardmore and as late as Apr 25 in Guymon.
When is the last frost in Oklahoma?
The average last spring frost in Oklahoma ranges from March 15 in Ardmore to April 18 in Guymon, based on NOAA 1991–2020 climate normals.
How long do sunflowers take to grow?
Sunflowers typically take 70–100 days from planting to harvest. Direct sow 1-3 weeks after last frost once soil has warmed; taprooted, resents transplanting.
Other Crops in Oklahoma
- 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
- Asparagus
- Basil
- Cilantro
- Parsley
- Dill
- Oregano
- Thyme
- Zinnias
- Marigolds
- Cosmos
- Nasturtiums
- Dahlias
When to plant sunflowers in other states