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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Rosemary in a Zone 5 season
Zone 5 gives about 154 frost-free days. Rosemary needs roughly 120 days from transplant. That leaves about 34 days of slack, enough for one full crop with a little room for a cold spring.
How to grow rosemary
Plant a nursery transplant in full sun and sharp drainage. In rainy climates set it on a mound or in a pot so water drains away. Tender: where winters freeze, grow it in a pot and bring it in for the cold months.
Companion plants
Good neighbors for Rosemary:
Rosemary in other zones
Not in Zone 5? Pick your zone for the same dated windows.
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.