I do not find epimedium to be invasive at all. This one is a 10 year old clump started from a very tiny plant. It is one of the clumping forms and is evergreen. Some are deciduous. How could you not love them? Once established they are very tough plants, they like water, but also do beautifully in drought conditions. Mine are not hindered by the root system of a very large Douglas Fir. There is very little I can grow in the area of the tree roots, epimedium, violets, hellebore, cyclamen, and some spring blooming bulbs.
