Take the right turn just past the island and you're in the "shady cultivars". This beautiful Halesia is down the middle trail.
Dozens of taxa are flowering; I would have photographed more, but I had to get home sometime. Native azaleas are just starting; there's an orange Rhododendron austrinum, flowering midway down the parking lot, and various other species inside the collection. Aesculus pavia, the Red Buckeye is a standout across the road from the parking lot. There's another Aesculus I didn't even know existed , Aesculus sylvestris, on the brink of flowering in the shady cultivar area. I found Joan nearby putting out display labels on new plants.