When to Plant Fennel (herb) in Oklahoma
Herb fennel is grown for its aromatic leaves, stalks, and seeds rather than a bulb. It has a strong anise flavor and its flowers attract beneficial insects.
Oklahoma spans USDA hardiness zones 6b, 7a, 7b (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.
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Click your county for exact Fennel (herb) planting dates based on your local frost dates.
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Fennel (herb) Planting Calendar for Oklahoma
▸ Zone 6b ~205 day growing season · Full guide →
Last frost: April 3 · First frost: October 25 · 205 day season
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 27 | Feb 27 – Mar 13 |
| Transplant Outdoors | March 27 | Mar 27 – Apr 10 |
| Direct Sow | March 20 | Mar 20 – Apr 10 |
| Harvest | May 29 | May 29 – Aug 7 |
| Fall Sowing | August 16 | Aug 16 – Aug 30 |
▸ Zone 7a ~221 day growing season · Full guide →
Last frost: March 25 · First frost: November 1 · 221 day season
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 18 | Feb 18 – Mar 4 |
| Transplant Outdoors | March 18 | Mar 18 – Apr 1 |
| Direct Sow | March 11 | Mar 11 – Apr 1 |
| Harvest | May 20 | May 20 – Jul 29 |
| Fall Sowing | August 23 | Aug 23 – Sep 6 |
▸ Zone 7b ~235 day growing season · Full guide →
Last frost: March 18 · First frost: November 8 · 235 day season
| Activity | When | Date Range |
|---|---|---|
| Start Indoors | February 11 | Feb 11 – Feb 25 |
| Transplant Outdoors | March 11 | Mar 11 – Mar 25 |
| Direct Sow | March 4 | Mar 4 – Mar 25 |
| Harvest | May 13 | May 13 – Jul 22 |
| Fall Sowing | August 30 | Aug 30 – Sep 13 |
Growing Tips for Oklahoma
Direct sow in spring or fall. Unlike Florence fennel, herb fennel does not form a bulb. Harvest fronds as needed and seeds when they turn brown. Self-sows readily.
Fennel (herb) in Other States
- Alabama
- Alaska
- Arizona
- Arkansas
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Georgia
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New Mexico
- New York
- North Carolina
- North Dakota
- Ohio
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Fennel (herb) in Oklahoma?
Planting dates for Fennel (herb) in Oklahoma depend on your USDA zone. Oklahoma spans zones 6b, 7a, 7b. Check the planting calendar above for your specific zone's frost dates and planting windows.
What zone is Oklahoma for planting?
Oklahoma contains USDA hardiness zones 6b, 7a, 7b. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.