The Northwest Flower & Garden Show (also known as the Northwest Flower & Garden Festival) is an annual exhibition of horticulture and gardening held in Seattle, Washington, for five days each February. It is the largest garden show west of Philadelphia and is regarded as the second largest garden show in the country. It is held at the Washington State Convention Center, and has been since the first year. The show has lush, fully built display gardens (which are judged for awards), over 90 educational and entertaining seminars, and a garden marketplace exclusively for plants, gardening supplies, botanical art, – the largest Marketplace of any garden show in the U.S.