When to plant radicchio in Maryland
Maryland spans USDA zones 7a–8a, so the right time to plant radicchio shifts by weeks across the state. The window to transplant seedlings outdoors runs from about March 8 in California to April 10 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 | March 10 – March 24 |
| Columbia | 7b | April 5 | November 9 | March 22 – April 5 |
| Germantown | 7b | April 14 | October 29 | March 31 – April 14 |
| Frederick | 7b | April 2 | November 6 | March 19 – April 2 |
| Waldorf | 7b | April 17 | October 27 | April 3 – April 17 |
| Silver Spring | 7b | April 10 | November 1 | March 27 – April 10 |
| Ellicott City | 7b | April 2 | November 7 | March 19 – April 2 |
| Glen Burnie | 7b | April 10 | October 31 | March 27 – April 10 |
Radicchio in Maryland: FAQ
When can I plant radicchio in Maryland?
Across Maryland, the time to transplant radicchio spans roughly March 8 in California to April 10 in Westminster, each following that city's local frost dates.
Does the radicchio planting date vary across Maryland?
Yes. Maryland publishes 139 cities with their own frost dates, so the right radicchio 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 radicchio take to grow in Maryland?
Radicchio takes about 60–90 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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