Now is the time to prune those early-blooming shrubs–once they’ve flowered–so their growth through the summer can fuel the development of next year’s buds. ISA-certified arborist Jen Kettell will focus your attention on the kinds of shrubs that should be pruned now, various pruning cuts, and the type of thinning that will encourage health and vibrant blooms for years to come. This Arnold Arboretum class will be held Monday, June 15, from 6:30 – 8:30 in the Hunnewell Building, 125 Arborway, Jamaica Plain. To register, visit https://my.arboretum.harvard.edu/Info.aspx?DayPlanner=1427&DayPlannerDate=6/15/2015.  Fee $25 member, $35 nonmember.  Picture from www.davesgarden.com.