In USDA zone 5, the last spring frost usually falls between Apr 10 and May 10. Plant around Apr 5 to May 18. Once established, expect to harvest around Jul 21 to Oct 5.
| Sow or plant outside | Apr 5 to May 18 |
|---|---|
| Harvest | Jul 21 to Oct 5 |
| 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 blackberries in your exact town, not just your zone.
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