How to Plant and Care for the Dahlia imperialis or “Tree Dahlia”

To all the lovely people,

            I had never seen or heard of a “Tree Dahlia”until I enrolled in the Master Gardener class in 2004. I was familiar with the Dahlia tuber and grew many large and beautiful tuberous Dahlia’s over the years but this plant was new to me. Like many or even most of the Tree Dahlia’s grown by Master Gardener’s in this area the original canes most likely came from the garden of...