When to plant leek in Maryland
Maryland spans USDA zones 7a–8a, so the right time to plant leek shifts by weeks across the state. The window to transplant seedlings outdoors runs from about February 22 in California to March 27 in Westminster — below are local dates for 139 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Transplant out |
|---|---|---|---|---|
| Baltimore | 8a | March 24 | November 21 | February 24 – March 10 |
| Columbia | 7b | April 5 | November 9 | March 8 – March 22 |
| Germantown | 7b | April 14 | October 29 | March 17 – March 31 |
| Frederick | 7b | April 2 | November 6 | March 5 – March 19 |
| Waldorf | 7b | April 17 | October 27 | March 20 – April 3 |
| Silver Spring | 7b | April 10 | November 1 | March 13 – March 27 |
| Ellicott City | 7b | April 2 | November 7 | March 5 – March 19 |
| Glen Burnie | 7b | April 10 | October 31 | March 13 – March 27 |
Leek in Maryland: FAQ
When can I plant leek in Maryland?
Across Maryland, the time to transplant leek spans roughly February 22 in California to March 27 in Westminster, each following that city's local frost dates.
Does the leek planting date vary across Maryland?
Yes. Maryland publishes 139 cities with their own frost dates, so the right leek planting window shifts by weeks between the warmest and coldest parts of the state — use your city's page for the exact dates.
How long does leek take to grow in Maryland?
Leek takes about 100–120 days to reach harvest once planted — check that this fits inside your city's frost-free season on its place page.
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