On Saturday August 27th and Sunday August 28th, the Colorado Dahlia Society will hold its annual show at The Flower Bin, 1805 Nelson Road, Longmont, Colorado. The show is free and open to the public. You don't have to be a member of the Colorado Dahlia Society to show your dahlias. You do have to register your entries by 9:00 AM Saturday morning, August 27th. Each dahlia must include two leaves along with the blossom, in order to be accepted into the judging. Very few plants offer as many colors and forms as dahlias do. to Europe and it was a staff member at the Royal Gardens in Madrid, Spain who named the plant after Swedish botanist Andreas Dahl. Dahl considered the flower a vegetable. The first varieties with large, double flowers were bred in Belgium in the early 1800’s. See the wide variety of dahlias you can grow in your own garden.