DibbleWhen to plant radishes 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 radishes in Zone 5
| Task | Window |
|---|---|
| Direct sow | Apr 2 to Apr 16 |
| Estimated harvest | Apr 30 to May 10 |
The harvest estimate counts 28 days to maturity, then a picking window of about 10 days. These windows use typical frost dates for Zone 5; Dibble pins them to your exact ZIP code.
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Radish in a Zone 5 season
Zone 5 gives about 154 frost-free days. Radish needs roughly 28 days from sowing. That leaves about 126 days of slack, so there is room for a late start or a second planting.
Sowing every 10 days, Zone 5 has room for about 13 plantings.
How to grow radishes
The fastest crop, ready in about a month. Sow 4 weeks before last frost and every 10 days while it's cool.
Companion plants
Good neighbors for Radish:
Radish in other zones
Not in Zone 5? Pick your zone for the same dated windows.
Keep exploring
Radish: 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.