Shrub/Tree Cornus mas [Cornelian Cherry Dogwood] Large multi-stemmed shrub or small tree of oval rounded outline, usually branching to the ground. Small yellow flowers are beautiful when borne in mass in the spring. No serious disease problems. Sometimes it suckers abundantly, and these suckers should be removed to control spread; this is especially important if maintaining this plant in tree form.
Shrub/Tree Cornus officinalis [Japanese Cornel Dogwood] The Japanese Cornel Dogwood is a large multi-stemmed shrub or small tree of oval rounded outline, usually branching to the ground. No serious disease problems, although it sometimes suckers abundantly. These suckers should be removed to control spread; this is especially important if maintaining this plant in tree form. Closely related to Cornus mas, but tends to have more attractive bark, is more open in habit, flowers one to two weeks earlier, and is slightly…
Shrub Cotoneaster divaricatus [Spreading Cotoneaster] One of the most ornamental and trouble-free of the cotoneasters, although subject to the troubles of Rosaceous plants on occasion. These include lacebugs, scale, mites, and fireblight, but they are not usually a serious problem.
Shrub Cotoneaster horizontalis [Rockspray Cotoneaster] C. horizontalis is a low, flat, dense shrub with horizontally spreading branches creating a tiered effect. A generally trouble-free cotoneaster, although can be subject to the troubles of Rosaceous plants on occasion. Fireblight is more problematic for this species in the South.
Tree Indiana Native Crataegus mollis [Downy Hawthorn] Quite susceptible to cedar-hawthorn rust, with leaves heavily spotted with orange in some years. Rust limits usage in many areas. Large fruit pose a maintenance issue when they drop.
Shrub Deutzia gracilis 'Nikko' [Dwarf Slender Deutzia] 'Nikko' is a compact, dense, and rounded shrub. Nice in flower as they can cover the plant, and relatively pest free. Branches often killed by cold temperatures in Northern range (or just die back), and then it's often best to cut it back to 6". Renewal pruning every few years can maintain vigor and form. Prune to maintain form by removing old stems, and do so after flowering to encourage best flower show the following…
Shrub Euonymus kiautschovicus [Spreading Euonymus] Foliage fully evergreen in the South, but persists for only about half the winter in the North. Although not as serious as in other species of Euonymus, scale insects can be a problem. May be killed to ground in severe winters, but grows back rapidly.
Tree Indiana Native Gleditsia aquatica [Water Locust] This native Indiana tree species is found in three southwestern counties near the lower Wabash River. It is often found in wet or ponded locations where there is standing water or high water tables. Not recommended for the landscape as it has large, multi-pronged thorns. Like its cousin, the honey locust, it has compound leaves, but can be differentiated by its location, much smaller seed pods, and flattened thorns along the branches.
Shrub Hibiscus syriacus 'Minerva' [Minerva Rose of Sharon] Minerva Rose of Sharon blooms in early summer featuring showy flowers that appear lavender with a pink hue and red eye.
