Maryland frost dates: I
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Ijamsville | Apr 14 | Oct 29 | 198 d | 7a |
| Indian Head | Mar 28 | Nov 8 | 225 d | 7b |
| Ingleside | Apr 3 | Nov 5 | 216 d | 7b |
| Ironsides | Mar 28 | Nov 8 | 225 d | 7b |
| Issue | Apr 17 | Oct 27 | 193 d | 7b |
| City | Last frost | First frost | Season | Zone |
|---|---|---|---|---|
| Ijamsville | Apr 14 | Oct 29 | 198 d | 7a |
| Indian Head | Mar 28 | Nov 8 | 225 d | 7b |
| Ingleside | Apr 3 | Nov 5 | 216 d | 7b |
| Ironsides | Mar 28 | Nov 8 | 225 d | 7b |
| Issue | Apr 17 | Oct 27 | 193 d | 7b |