Willow, July 22-24: Willow hosts a Sidewalk Sale featuring up to 75 percent off spring and summer 2016 clothing, jewelry, shoes and handbags from a variety of designers. 2595 Canyon Blvd., Boulder; 303-818-5950; willowboulder.com Denver Hudson Gardens July 27: Lost in a Garden of Roses: An Elegant Art and Fashion Showcase, 6 p.m.- 9 p.m.