When to plant radish in Connecticut
Connecticut spans USDA zones 6a–7a, so the right time to plant radish shifts by weeks across the state. The window to sow seed directly outdoors runs from about March 8 in Bridgeport to April 10 in Torrington — below are local dates for 35 cities, each computed from its own frost dates.
| City | Zone | Last frost | First frost | Direct sow |
|---|---|---|---|---|
| Bridgeport | 7a | April 5 | November 6 | March 8 – April 19 |
| Stamford | 7a | April 17 | October 23 | March 20 – May 1 |
| New Haven | 7a | April 17 | October 27 | March 20 – May 1 |
| Hartford | 6b | April 17 | October 26 | March 20 – May 1 |
| Waterbury | 6b | April 26 | October 16 | March 29 – May 10 |
| Norwalk | 7a | April 17 | October 23 | March 20 – May 1 |
| Danbury | 6b | May 1 | October 14 | April 3 – May 15 |
| New Britain | 6b | April 17 | October 26 | March 20 – May 1 |
Radish in Connecticut: FAQ
When can I plant radish in Connecticut?
Across Connecticut, the time to direct-sow radish spans roughly March 8 in Bridgeport to April 10 in Torrington, each following that city's local frost dates.
Does the radish planting date vary across Connecticut?
Yes. Connecticut publishes 35 cities with their own frost dates, so the right radish 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 radish take to grow in Connecticut?
Radish takes about 22–30 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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