When to plant leeks in zone 6
In USDA zone 6, the last spring frost usually falls between Apr 5 and Apr 30. Start leeks indoors around Jan 27 to Feb 27. Plant them out around Apr 16 to May 11. Expect to harvest around Sep 13 to Nov 28.
Zone 6 dates for leeks
| Start seeds indoors | Jan 27 to Feb 27 |
|---|---|
| Plant outside | Apr 16 to May 11 |
| Harvest | Sep 13 to Nov 28 |
| Typical last spring frost | Apr 5 to Apr 30 |
| Typical first fall frost | around Oct 15 |
USDA zones measure winter cold, not frost dates, so these are typical dates for the zone. Towns in the same zone can be weeks apart.
Get dates for leeks in your exact town, not just your zone.
Get my dates free →How to grow leeks
Mild, hardy alliums that stand through winter. Read the full leeks growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.