Variegated Vinca Major
Vinca major 'Variegata'
Excellent white-margined groundcover, with oval-shaped leaves, 1 inch wide and 1.5 to 3 inches long. Blooms are 1 to 2 inches and lilac-blue in spring. Grows 4 to 6 inches tall and 24 to 36 inches wide.
USDA Z5 - Cold Hardy -20 to -10F