DibbleWhen to plant marigolds in Zone 7
In Zone 7, the last spring frost usually passes around April 10 and the first fall frost arrives around October 29, leaving about 202 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.
Long season. Great for succession planting and fall crops.
Planting windows for marigolds in Zone 7
| Task | Window |
|---|---|
| Start seeds indoors | Mar 13 to Mar 27 |
| Transplant | Apr 24 to May 8 |
| Estimated harvest | Jun 13 to Sep 11 |
The harvest estimate counts 50 days to maturity, then a picking window of about 90 days. These windows use typical frost dates for Zone 7; Dibble pins them to your exact ZIP code.
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Marigold in a Zone 7 season
Zone 7 gives about 202 frost-free days. Marigold needs roughly 50 days from transplant. That leaves about 152 days of slack, so there is room for a late start or a second planting.
How to grow marigolds
Start seeds indoors about 6 weeks before planting out, and transplant once nights are no longer cold. A classic companion that deters many pests. Deadhead for steady blooms.
Companion plants
Good neighbors for Marigold:
Marigold in other zones
Not in Zone 7? Pick your zone for the same dated windows.
Keep exploring
Marigold: the full growing guide · The Zone 7 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.