This is Filipendula rubra, also known as Queen Of The Prairie, and Meadowsweet. Growing up to 8 feet tall this plant likes to live in full sun to partial shade. From late Spring to the middle of Summer this perennial has pink blossoms. This stunning plant attracts bees, butterflies, beetles, and flies. Pendulus is latin for hanging , while filum is latin for thread. This plant is commonly used in gardens for its fragrant flowers. USDA Hardiness Zones 3 to 9.