Tree Ulmus davidiana var Japonica 'Morton' [sold as Accolade®] [Accolade Elm] Very good resistance to the Dutch elm disease pathogen, Ophiostoma ulmi, which has led to the near extinction of the American Elm (Ulmus americana) in the U.S. Also has good resistance against phloem necrosis, elm leaf beetle, and leaf miner.
Tree Ulmus × 'Homestead' [Homestead Elm] Dutch elm and phloem necrosis resistant, but susceptible to the elm leaf beetle. 'Homestead' was formed from a cross between Ulmus minor, U. x hollandica, and U. pumila.
Tree Ulmus × 'Frontier' [Frontier Elm] Small tree that grows well under city conditions. Good Dutch elm disease resistance and moderate elm leaf beetle resistance.
Tree Ulmus × 'Morton Glossy' [sold as Triumph™] [Triumph Elm] Upright oval to vase-shaped habit with arching branches, glossy dark green summer foliage, changing to yellow in fall; hybrid between Accolade® and Vanguard™. Dutch elm disease resistant, the best habit in early age of the Morton Arboretum elms.
Tree Ulmus × 'Patriot' [Patriot Elm] 'Patriot' is a cultivar with high resistance to elm leaf beetles and Dutch elm disease. It also has some resistance to elm yellows. It has green leaves that have a glossy texture and turn yellow in the fall. It is used many times as a street tree due to its fast-growing nature and its road salt tolerance.
Herbaceous Veronica 'Purpleicious' [sold as Purpleicious Hybrid Speedwell] [Purpleicious Hybrid Speedwell]
Shrub Viburnum × 'Oneida' [Oneida Viburnum] 'Oneida' is a hybrid most similar to its Viburnum dilatatum (Linden Viburnum) parent. This plant is known for profuse flower show in May, followed by continued, albeit sporadic, blooming through summer, and abundant fruits that persist into winter. Wide spreading branches. One of the best viburnums for showy fruits. A different clone as a pollinator helps produce a more abundant fruit set. Borers can sometimes be a problem. Relatively trouble-free.
Shrub Viburnum × 'Pragense' [Prague Viburnum] More drought tolerant than most Viburnums. Topping may be needed initially to encourage branching. This hybrid arose in Prague, Czechoslovakia in the 1950s.
