I will hazard a guess that they are the only research plots on the east coast with decorative arbors. Campsis radicans (native) and Campsis grandiflora (Asian) will cover them quickly. Though not visible in this picture, many of the plants are starting to look good, some are in vigorous growth. This Thursday a large volunteer group will be coming in the help spread mulch on the new plants. We're (the collections) all lending wheelbarrows and pitchforks. Things move slowly but surely forward.