When to Plant Leeks in Zone 4
In USDA zone 4, plant outdoors November 14 to July 12, and expect your first harvest around July 12.
Leeks planting calendar for USDA Zone 4
Direct sow
Nov 14
Projected first harvest
Jul 12
Most leeks mature in about 130 to 240 days depending on the variety. Dates use USDA zone 4a average frost dates. Set your ZIP in HomeSown for dates tuned to your exact location.
What zone 4 means for leeks
Average last spring frost
May 15
Average first fall frost
September 20
Those two dates are what set the schedule above. Zone 4 gives you roughly 128 frost-free days, and leeks need about 130 to 240 days depending on the variety to mature.
Varieties to grow
2 varieties of leeks in the HomeSown library. Tap any for its full grow guide.
Common problems with leeks
What to watch for, with identification and treatment for each
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