The Iseli Clone Wheel Tree has really good green foliage even during the cold winter months. I believe this clone was imported from Japan by Iseli Nursery back in the 1980's.
Trochodendron aralioides [DJHT 99031] is a wild collected form collected by Dan Hinkley in Taiwan. It has particularly nice shinny maroon new foliage in the Spring.
We grew these seedlings from seed collected at the Washington Park Arboretum in Seattle. The have turned an interesting mix of colors after our winter cold.