Missouri Primrose
Oenothera missouriensis (macrocarpa)
Missouri Evening Primrose is a trailing, evergreen perennial. A prolific bloomer with huge, fragrant, bright lemon yellow, 3 to 4-inch blooms from late spring to fall. It will grow 8 to 12 inches tall and 18 to 24 inches wide. Prefers well drained soil.
USDA Z4 - Cold Hardy -30 to -20F
