When to Plant Leeks in Zone 6
In USDA zone 6a, plant outdoors October 25 to June 22, and expect your first harvest around June 22. (6a shown here — see 6a and 6b dates separately below.)
Leeks planting calendar for USDA Zone 6a
Average last spring frost
April 25
Average first fall frost
October 10
Direct sow
Oct 25
Projected first harvest
Jun 22
Most leeks mature in about 130 to 240 days depending on the variety, needing roughly 168 frost-free days in zone 6a.
Leeks planting calendar for USDA Zone 6b
Average last spring frost
April 20
Average first fall frost
October 15
Direct sow
Oct 20
Projected first harvest
Jun 17
Most leeks mature in about 130 to 240 days depending on the variety, needing roughly 178 frost-free days in zone 6b.
Not sure whether you're in 6a or 6b? Set your ZIP in HomeSown for dates tuned to your exact location.
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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