Seedless and semi-evergreen. Thanks to the innovative breeding of Dr. Tom Ranney and his team at the NCSU research station, we now offer a second sterile, dark-leaf barberry: Sunjoy Todo ® . The wide cross that resulted in its sterility also conferred deep purple glossy foliage that persists through the year, especially in warmer climates. Attractive orange flowers develop fruit, however, seeds are hollow and non-viable.