When to plant asparagus in zone 4
In USDA zone 4, the last spring frost usually falls between May 1 and May 20. Plant around Apr 21 to May 28. Once established, expect to harvest around May 22 to Jul 3.
Zone 4 dates for asparagus
| Sow or plant outside | Apr 21 to May 28 |
|---|---|
| Harvest | May 22 to Jul 3 |
| Typical last spring frost | May 1 to May 20 |
| Typical first fall frost | around Sep 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 asparagus in your exact town, not just your zone.
Get my dates free →How to grow asparagus
Plant once, harvest for 15+ years. Read the full asparagus growing guide: spacing, sun and soil, step-by-step care, problems and the best varieties.