When to Plant Radish in Washington
Radishes are one of the fastest-growing vegetables, with some varieties ready in under a month. They come in round, elongated, and large winter types.
Washington spans USDA hardiness zones 5b, 6a, 6b, 7a, 7b, 8a, 8b (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.
Find Your County
Click your county for exact Radish planting dates based on your local frost dates.
Hover over a county to see details. Click to view planting guide.
Radish Planting Calendar for Washington
▸ Zone 5b ~178 day growing season · Full guide →
Last frost: April 18 · First frost: October 13 · 178 day season
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | April 4 | Apr 4 – Apr 25 |
| Harvest | May 2 | May 2 – May 23 |
| Fall Sowing | August 4 | Aug 4 – Aug 18 |
▸ Zone 6a ~193 day growing season · Full guide →
Last frost: April 10 · First frost: October 20 · 193 day season
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 27 | Mar 27 – Apr 17 |
| Harvest | April 24 | Apr 24 – May 15 |
| Fall Sowing | August 11 | Aug 11 – Aug 25 |
▸ Zone 6b ~205 day growing season · Full guide →
Last frost: April 3 · First frost: October 25 · 205 day season
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | March 20 | Mar 20 – Apr 10 |
| Harvest | April 17 | Apr 17 – May 8 |
| 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 |
|---|---|---|
| Direct Sow | March 11 | Mar 11 – Apr 1 |
| Harvest | April 8 | Apr 8 – Apr 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 |
|---|---|---|
| Direct Sow | March 4 | Mar 4 – Mar 25 |
| Harvest | April 1 | Apr 1 – Apr 22 |
| Fall Sowing | August 30 | Aug 30 – Sep 13 |
▸ Zone 8a ~255 day growing season · Full guide →
Last frost: March 8 · First frost: November 18 · 255 day season
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 22 | Feb 22 – Mar 15 |
| Harvest | March 22 | Mar 22 – Apr 12 |
| Fall Sowing | September 9 | Sep 9 – Sep 23 |
▸ Zone 8b ~276 day growing season · Full guide →
Last frost: February 25 · First frost: November 28 · 276 day season
| Activity | When | Date Range |
|---|---|---|
| Direct Sow | February 11 | Feb 11 – Mar 4 |
| Harvest | March 11 | Mar 11 – Apr 1 |
| Fall Sowing | September 19 | Sep 19 – Oct 3 |
Growing Tips for Washington
Direct sow every 1-2 weeks for continuous harvest. Do not transplant. Harvest spring radishes promptly to prevent them from becoming pithy and hot.
Radish 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
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Tennessee
- Texas
- Utah
- Vermont
- Virginia
- West Virginia
- Wisconsin
- Wyoming
Frequently Asked Questions
When should I plant Radish in Washington?
Planting dates for Radish in Washington depend on your USDA zone. Washington spans zones 5b, 6a, 6b, 7a, 7b, 8a, 8b. Check the planting calendar above for your specific zone's frost dates and planting windows.
What zone is Washington for planting?
Washington contains USDA hardiness zones 5b, 6a, 6b, 7a, 7b, 8a, 8b. 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.