In 1984, a group of Seattle gardeners passionate about gardening in the Northwest formed the Northwest Perennial Alliance. NPA was patterned after the Hardy Plant Society of Great Britain, with free garden tours, lectures, plant sales and a seed exchange.
Today NPA is one of the largest nonprofit gardening organizations in Washington, with members from Snohomish to Olympia and beyond. With its huge Open Gardens program and network of neighborhood garden groups, NPA is the best way to meet other gardeners, and learn more about perennials and hardy plants that will survive and thrive in our climate.
NPA also maintains the NPA Border, our famous perennial garden at the Bellevue Botanical Garden. This beautiful display garden is our gift to the community, and offers one-of-a-kind learning opportunities for NPA members through classes, workshops and volunteer crews.