Many of the plants in this collection are over 100 years old and have been maintained since then, so I would have to say that it is pretty impressive. I believe there are also some rare specimins in the group. Many of these flowers were donated to the university.
I am hoping that I can get to the Arboretum again before the blooms start to wilt. I'm not sure that is going to happen since I'm going to be gone for the next week. I was glad that I got the opportunity to go down there though.