Hardy Rubber Tree
At 40 to 60 feet high and 30 to 50 feet wide, the broadleaf deciduous Eucommia ulmoides (u-KOM-i-a ul-MOY-dez) is a medium-large tree that is excellent for shade. This tree, native to central China but unknown in the wild, is somewhat pyramidal in youth, but rounded to broad spreading at maturity. When one of the lustrous dark green leaves is torn, a bit of rubbery latex seeps out, giving the tree its common name: the hardy rubber tree. It grows best in full sun, is hardy to Zone (4)5, and is nearly pest-free.