Northern Prairie Wildlife Research Center
| Major Land Resources Area (MLRA)* |
Seeding dates** |
| 53A | Not recommended |
| 53B | 1-15 June |
| 53C | 1-15 June |
| 55A | 1-15 June |
| 55B | 1-15 June |
| 55C | 1-15 June |
| 56 | 1-15 June |
| 57 | 1-15 June |
| 90 | 1-15 June |
| 91 | 1-15 June |
| 102A | 1-15 June |
| 102B | 15-30 May |
| 103 | 15-30 May |
* See Fig. 1. ** Optimum seeding time depends on temperature and soil moisture. In northern MLRA's successful seedings may be made at least 2 weeks before or after the indicated optimum depending on local conditions. Not recommended for fall seeding.