Bleeders include beech, birch, elm, hornbeam, maple, walnut, willow ... wait to prune trees that bloom before July until they are done flowering. Examples include cherry, crabapple, lilac ...

Peak bloom occurs when 70% of the blossoms of the Yoshino cherry trees, the most common type along the Tidal Basin, are open. The National Park Service, which tracks the blooming of the trees each ...