TOP SELLING RAMBLER! It’s easy to see why Darlow’s Enigma is a “must-have” for Rambler lovers. His pure white, semi-double, 1 ½” blooms with 5-8 petals open flat to show golden centers that are a favorite of pollinators. His blossoms are produced in clusters on a continually blooming bush. Darlow’s Enigma also is shade tolerant, extremely fragrant, produces beautiful hips, and thrives all the way down to zone 4. What’s not to love?