DibbleWhen to plant rosemary in Zone 5
In Zone 5, the last spring frost usually passes around April 30 and the first fall frost arrives around October 1, leaving about 154 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Classic temperate season. Most vegetables and flowers do well with normal timing.
Planting windows for rosemary in Zone 5
| Task | Window |
|---|---|
| Transplant | May 7 to May 21 |
| Estimated harvest | Sep 4 to Mar 23 |
The harvest estimate counts 120 days to maturity, then a picking window of about 200 days. These windows use typical frost dates for Zone 5; Dibble pins them to your exact ZIP code.
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How to grow rosemary
Set out a transplant after the last frost in full sun and sharp drainage. Tender, shelter or pot it up over cold winters.
Companion plants
Good neighbors for Rosemary:
Rosemary in nearby zones
Keep exploring
Rosemary: the full growing guide · The Zone 5 planting calendar · Every crop and zone
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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.