Seedling McCrae #27. Parentage: ‘Lake ‘o Silver’ (Franklin, 1920) open pollinated. First year bloomed unknown, propagated 2005. DOUBLE. Flowers are medium sized, fully double, white, with some center petals delicately edged in red, and a pale yellow glow from the depths of the center. Average of three flowers per stem. Cupped guards (2 inch average width) are generally smooth-edged, forming a nicely rounded flower. Stamens and carpels are fully transformed, absent. Staminodal disk obscure, barely visible, the few projections visible are pink. Up-facing flower presentation. Very fragrant. Mid/late season bloom period. Upright growth habit to 36 inches (90 cm). Mechanical support not needed. ‘Walla Walla’ was awarded a Certificate of Merit in the Seedlings Class 301 at the APS meeting and exhibition held in Omaha, Nebraska, 2012.