Potentilla alba
Potentilla alba
Oval green leaves have a silvery underside. Flat, single, white flowers bloom in summer. Vigorous and mat-forming. (Perennial)
Bloom time Size Exposure
Summer 2-3" tall x 3" wide Sun 
Hardiness Zone:5,6,7,8,9
zone map Cold Hardy to -20° to -10°F
Prostrate or vining growth habit Prostrate or vining growth habitRockery or Alpine Plant Rockery or Alpine Plant