For nearly 100 years, Swan Island Dahlias has cultivated beauty, tradition, and innovation from the rich farmland of the Willamette Valley. Today, we are proud to be the largest dahlia grower in the United States and a destination for flower lovers from around the world. We invite you to celebrate the season of Dahlias in August & September every summer! Stroll through almost 50 acres of breathtaking fields and a beautiful display garden of stunning dahlias featuring over 375 varieties. Treat yourself to a rainbow of colors by taking photos, shopping in our mercantile, and purchasing fresh-cut dahlias to take home. Select and order your favorite dahlias for spring delivery to enjoy the beauty in your garden the following year. Fill your belly with yummy treats from our Food Carts, relax and enjoy the Live Music on the weekend, or take one of our Classes throughout the festival dates.