DibbleWhen to plant leeks 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 leeks in Zone 7
| Task | Window |
|---|---|
| Start seeds indoors | Jan 30 to Feb 13 |
| Transplant | Mar 27 to Apr 10 |
| Estimated harvest | Jul 25 to Sep 8 |
The harvest estimate counts 120 days to maturity, then a picking window of about 45 days. These windows use typical frost dates for Zone 7; Dibble pins them to your exact ZIP code.
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Leek in a Zone 7 season
Zone 7 gives about 202 frost-free days. Leek needs roughly 120 days from transplant. That leaves about 82 days of slack, so there is room for a late start or a second planting.
How to grow leeks
Start indoors 10 weeks before last frost. Transplant into a deep hole and hill soil up the stem to blanch the white shanks.
Companion plants
Good neighbors for Leek:
Better kept apart:
Leek in other zones
Not in Zone 7? Pick your zone for the same dated windows.
Keep exploring
Leek: 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.