When to plant leeks in zone 5
In USDA zone 5, the last spring frost usually falls between Apr 10 and May 10. Start leeks indoors around Feb 3 to Mar 6. Plant them out around Apr 23 to May 18. Expect to harvest around Sep 20 to Nov 30.
Zone 5 dates for leeks
| Start seeds indoors | Feb 3 to Mar 6 |
|---|---|
| Plant outside | Apr 23 to May 18 |
| Harvest | Sep 20 to Nov 30 |
| Typical last spring frost | Apr 10 to May 10 |
| 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.