As the Arboretum’s hydrangea collection begins to bloom in shades of blue, white, pink, and purple, stop in the Hunnewell Lecture Hall for a book talk on ‘Hydrangea Happiness: Planting, Pruning, and Blooming.’ This beautifully illustrated guide by author C.L. Fornari is a boon for beginner gardeners and experienced horticulturists alike. Learn about the most popular hydrangea varieties, how to manage planting and ongoing maintenance, and surprising myths and misinformation about these beautiful shrubs.