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When to plant leeks

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Leeks planting guide

Start indoors early; hill soil around stems for long white shanks.

Frost-tolerant (cool-season) crop. Typical days to maturity: 120.

Leeks planting dates by zone

ZoneStart indoorsTransplant
Zone 3Mar 11 – Mar 25May 6 – May 27
Zone 4Mar 1 – Mar 15Apr 26 – May 17
Zone 5Feb 19 – Mar 5Apr 16 – May 7
Zone 6Feb 9 – Feb 23Apr 6 – Apr 27
Zone 7Jan 30 – Feb 13Mar 27 – Apr 17
Zone 8Jan 14 – Jan 28Mar 11 – Apr 1
Zone 9Dec 17 – Dec 31Feb 11 – Mar 4
Zone 10Nov 22 – Dec 6Jan 17 – Feb 7

Based on average frost dates for each zone in 2027; check your local frost date.

FAQ

When should I plant leeks?

Start indoors early; hill soil around stems for long white shanks.

How long do leeks take to grow?

About 120 days to first harvest for typical varieties.

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