What: Dwarf Purpleleaf Japanese Barberry, or berberis thunbergii f. atropurpurea Concorde, was selected for its small, compact size and dense growth. In spring, deep red-burgundy foliage emerges ...

Look at gardens or front yards across the Northeast U.S., and you’ve probably seen the Japanese barberry. The small shrub — usually about 2 or 3 feet tall — has elegant arching branches, spoon-shaped ...