| Year | Germination (%) | Viability (%) | ||
| North Site | South Site | North Site | South Site | |
| 2004 | 1.0 | 8.2 | 100 | 99.7 |
| 2005 | 3.5 | 7.7 | 99.7 | 99.5 |
| 2006 | 4.0 | 2.7 | 99.5 | 99.5 |