When to plant Rosemary
Slow from seed and frost-tender in cold zones — most gardeners start from a plant and overwinter indoors.
TypeHerbs
Frost toleranceTender (no frost)
Days to maturity~90
When to plant Rosemary by USDA zone
| Zone | When to plant |
|---|---|
| Zone 1a | Start seeds indoors Apr 6–Apr 20 Transplant outdoors Jun 29–Jul 13 |
| Zone 1b | Start seeds indoors Apr 1–Apr 15 Transplant outdoors Jun 24–Jul 8 |
| Zone 2a | Start seeds indoors Mar 27–Apr 10 Transplant outdoors Jun 19–Jul 3 |
| Zone 2b | Start seeds indoors Mar 21–Apr 4 Transplant outdoors Jun 13–Jun 27 |
| Zone 3a | Start seeds indoors Mar 16–Mar 30 Transplant outdoors Jun 8–Jun 22 |
| Zone 3b | Start seeds indoors Mar 11–Mar 25 Transplant outdoors Jun 3–Jun 17 |
| Zone 4a | Start seeds indoors Mar 6–Mar 20 Transplant outdoors May 29–Jun 12 |
| Zone 4b | Start seeds indoors Mar 1–Mar 15 Transplant outdoors May 24–Jun 7 |
| Zone 5a | Start seeds indoors Feb 24–Mar 10 Transplant outdoors May 19–Jun 2 |
| Zone 5b | Start seeds indoors Feb 19–Mar 5 Transplant outdoors May 14–May 28 |
| Zone 6a | Start seeds indoors Feb 10–Feb 24 Transplant outdoors May 5–May 19 |
| Zone 6b | Start seeds indoors Feb 4–Feb 18 Transplant outdoors Apr 29–May 13 |
| Zone 7a | Start seeds indoors Jan 27–Feb 10 Transplant outdoors Apr 21–May 5 |
| Zone 7b | Start seeds indoors Jan 21–Feb 4 Transplant outdoors Apr 15–Apr 29 |
| Zone 8a | Start seeds indoors Jan 11–Jan 25 Transplant outdoors Apr 5–Apr 19 |
| Zone 8b | Start seeds indoors Jan 4–Jan 18 Transplant outdoors Mar 29–Apr 12 |
| Zone 9a | Start seeds indoors Dec 20–Jan 3 Transplant outdoors Mar 14–Mar 28 |
| Zone 9b | Start seeds indoors Dec 7–Dec 21 Transplant outdoors Mar 1–Mar 15 |
| Zone 10a | Start seeds indoors Nov 22–Dec 6 Transplant outdoors Feb 14–Feb 28 |
| Zone 10b | Start seeds indoors Nov 6–Nov 20 Transplant outdoors Jan 29–Feb 12 |
| Zone 11a | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |
| Zone 11b | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |
| Zone 12a | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |
| Zone 12b | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |
| Zone 13a | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |
| Zone 13b | Start seeds indoors Oct 23–Nov 6 Transplant outdoors Jan 15–Jan 29 |