Frost dates by location
| Location | Zone | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|---|
| Des Moines | 5b | Apr 18 | Oct 20 | 185 |
| Cedar Rapids | 5a | May 1 | Oct 8 | 160 |
| Davenport | 5b | Apr 23 | Oct 16 | 176 |
Zones in Iowa
Bottom line: a statewide planting date is a compromise nobody's garden actually
lives at. Iowa's last-frost spread is
13 days wide. Use the location nearest you.
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