Silverleaf phacelia (Phacelia hastata) is a native forb with several beneficial conservation uses for native plant community restoration including pollinator habitat restoration and mined land reclamation. Seeds of silverleaf phacelia exhibit dormancy that significantly limits germination without pretreatment. As a species of interest in restoring lands in western Montana impacted by acid and heavy metal fallout from historic smelting operations, and as an important species for pollinator habitat enhancement, a replicated study was initiated to investigate potential dormancy breaking pretreatments. A Randomized Complete Block design of four replicates, each with 100 seeds, was sown in containers comparing two durations of seed coat scarification (none versus 360 seconds) and three intervals of cold:moist chilling (stratification) (none, 30-day, 60-day). In this study, best results (mean germination of 65%) was attained with scarified seeds stratified for 30 days. At this time, seed coat scarification with 40 grit sand paper in a commercial seed scarifier for at least 90 but not more than 360 seconds is recommended prior to late winter or early sowing of silverleaf phacelia, whereas dormant fall planting of nonscarified seeds is recommended