The Manzers Team June 27, 2022 Backyard, Landscaping Services, Residential Your Guide to Perennials That Bloom All Summer in Westchester NY The Manzers Team June 27, 2022 Backyard, Landscaping Services, Residential While there are no single perennials that bloom all summer in Westchester NY, a well-planned garden offers waves of color throughout the whole season.