Demise of shade garden tree
Today I walked outside to inspect my shade garden, only to suddenly realize with shock that the faithful dogwood that has provided shade there for the last 12 years is in serious decline. I estimate that it has lost 75% of its canopy, and the plants under it are no longer in lovely dappled shade, but nearly full sun.
I need to replace this tree, pronto! I had thought about getting a fringe tree, but to my chagrin, I see that they grow very slowly. The space is not large (12 x 15), and is rather close to the house. It gets sun most of the day (I didn't plant the original dogwood, which would probably have preferred a more sheltered spot). The soil is decent, and it is on a slight slope.
I have a crabapple tree in an adjacent, lower garden; maybe I should get another? Any other ideas for a small tree that has a fairly full canopy?