Spring is a great time to assess woody shrubs for shape, structure and winter damage. The arborist Kieran Yaple will demonstrate how to renovate, rejuvenate and shape shrubs and small ornamental trees for structure, health and optimal growth on Saturday, March 15, from 9 a.m. to 1 p.m. The class will cover viburnums, lilacs, witch hazel, deciduous azaleas, sweetshrubs, crabapples, and ornamental cherries. Participants should dress for the weather and bring pruners, work gloves and lunch. Some pruners, provided by BBG, will be available for use.