Shrub Viburnum × burkwoodii [Burkwood Viburnum] Trouble-free plant tolerant of soils and pollution (except sulfur). Also, does not tolerate more severe drought. Very fragrant when in bloom, although to a lesser degree than Viburnum carlesii (Koreanspice Viburnum). Bacterial spot and powdery mildew susceptibility (but not always a problem). Sulfur containing pesticides burn or defoliate leaves. Too thin to be a solid screen.
Shrub Indiana Native Viburnum dentatum [Arrowwood Viburnum] Can look ragged in dry soil. Flowers malodorous to some. Attractive to birds. Name derived from Native American use of strong sucker shoots for arrow shafts. The most durable of viburnums. Serves as a nice neutral background shrub.
Shrub Viburnum dilatatum [Linden Viburnum] 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 farreri [Fragrant Viburnum] Some winter protection promotes best growth. Early flowering in spring is sometimes followed by a later frost/freeze that kills back the flowers and inhibits leaf growth.
Shrub/Tree Indiana Native Viburnum lentago [Nannyberry Viburnum] The Nannybery can be grown as a large, suckering shrub or small tree and is noted for its white flower cymes and edible berries. The flower buds for the following year are formed in the summer, so if pruning is desired, it should be completed immediately after flowering.
Shrub Viburnum opulus [European Cranberrybush Viburnum] Widely tolerant of soils and microclimates, although found in more wet sites in wild stands. May be troubled by aphids. The snowball variety, V. opulus 'Roseum', is badly troubled by aphids. Prune on a 3-year cycle to maintain best form and fruiting. Flower cymes have an outer showy and sterile ring and an inner inconspicuous and fertile cluster which produces the berries.
Shrub/Tree Indiana Native Viburnum prunifolium [Blackhaw Viburnum] Widely tolerant of different soils and exposures. Transplants well. Relatively trouble-free. Can be pruned to form a nice hedge. Scale and borers are occasional problems. The edible fruits are sweet and can be eaten fresh, or used in jams and preserves.
Shrub Viburnum × rhytidophylloides 'Willowwood' [Willowwood Lantanaphyllum Viburnum] Poor tolerance to heavy wind environments. Great plant in the Midwest, flowering in the spring and even sporadically into the fall. Foliage sometimes lasting well into the winter. Prune right after flowering, because new buds for the following year form in the summer.
Tree Zelkova serrata 'Halka' [Halka Japanese Zelkova] An excellent shade tree, probably one of the best substitutes for Ulmus americana in form and gracefulness, but slightly smaller. A beautiful wood grain for furniture, etc. Minor susceptibility to various elm diseases and pests, but resistant to Dutch Elm Disease. Considered to be one of the more popular cultivars of Zelkova serrata, although Green Vase and 'Green Village' tend to be better performers. 'Halka' is more open and loose and the fall color is…