Pyrus ussuriensis, or prairie gem ussurian pear, native to northeast Asia and is highly resistant to fire blight. It prefers full sun to partial shade, and well-drained soils. Young trees should be pruned to create an open branching structure for even light distribution of fruit. This high-maintenance plant requires regular care and is best pruned in late winter after the risk of extreme cold has passed. Pyrus ussuriensis drops small fruits and a moderate number of leaves, with heavier shedding during the fall. It is considered somewhat messy due to the persistent debris that requires regular seasonal cleanup.