Tree Pinus sylvestris [Scotch Pine] Effective as a screen with pruning. Tolerant of fairly dry soils, but not a good specimen in shade or on wet soils. Sphaeropsis, nematodes, and pine wilt fungus are serious problems; not recommended by Morton Arboretum.
Shrub Pinus sylvestris 'Hillside Creeper' [Creeping Scotch Pine] 'Hillside Creeper' is a low-growing, spreading evergreen that can be used as a groundcover. Tolerant of fairly dry soils, but not a good specimen in shade or on wet soils.
Tree Pinus thunbergii [Japanese Black Pine] The Japanese Black Pine develops a picturesque, open, and irregular form with age (excellent for bonsai), but pruning can be used to develop denser branching, if desired. This species is very tolerant of salt spray and is especially useful for coastal plantings. Pinus thunbergii is quite susceptible to Pine Wilt Disease from the Pine Wood Nematode (Bursaphelenchus xylophilus), which is vectored by the Pine Sawyer Beetle. Tends to have a shorter life span when grown…
Tree Platanus × acerifolia [London Planetree] Platanus x acerifolia is quite similar to P. occidentalis, but was originally advertised as being much more pest resistant. P. x acerifolia was quickly overplanted, and it is clear that pest resistance varies among hybrids, and can be quite poor. Pests that can severely affect this species include sycamore anthracnose, cankerstain, Botryosphaeria canker, leaf spot, powdery mildew, sycamore lace bug, and American plum borer. One of the largest of shade trees, making massive, majestic specimens.…
Tree Indiana Native Platanus occidentalis [American Sycamore] One of the largest of shade trees, making massive, majestic specimens. Tolerant of urban conditions, but generally found in riparian areas in the wild. The mottled, multi-colored, exfoliating bark is very beautiful and makes for excellent winter interest. Needs a large volume of soil space. Anthracnose leaf and twig blight occasionally disfigure this tree, and can damage it severely. Leaves, twigs, bark, and fruit contribute to a significant litter problem. Although this species can tolerate…
Shrub/Tree Platycladus orientalis [Oriental Arborvitae] Best in at least fairly moist soils, and with fairly high humidity. Habit tends toward becoming thinner (open) with age. Subject to "winter-burn" near the edge of its useful range. Certain forms provide very positive accent, but can be over-used. Bagworms can also be a problem.
Tree Prunus cerasifera [Cherry Plum] This tree is not pollution tolerant and is short-lived, often living to only about 20 years. There are numerous diseases and pests that can affect Prunus cerasifera, especially canker, fireblight, leaf spots, powdery mildew, aphids, scale, borers, and tent caterpillars. Despite its drawbacks, this tree is extraordinarily popular and has been used extensively in the landscape. The straight species Prunus cerasifera is not often seen, with purple-leaf forms being the most predominant.
Tree Prunus cerasifera 'Atropurpurea' [Purple Cherry Plum] This tree is not pollution tolerant and is short-lived, often living to only about 20 years. There are numerous diseases and pests that can affect Prunus cerasifera, especially canker, fireblight, leaf spots, powdery mildew, aphids, scale, borers, and tent caterpillars. Despite its drawbacks, this tree is extraordinarily popular and has been used extensively in the landscape. The straight species Prunus cerasifera is not often seen, with purple-leaf forms, such as 'Atropurpurea' being the most predominant.…
Shrub Prunus glandulosa 'Rosea Plena' [Rosea Plena Dwarf Flowering Almond] 'Rosea Plena' is a small, near fruitless, multi-stemmed shrub with beautiful pink and white double flowers. It has an irregular, spreading form that can eventually become too open. Annual and immediate pruning following flowering and constant removal of root suckers will help maintain a better form and encourage increased blooming. Requires well-drained soil. Susceptible to numerous pests and diseases, which can cause it to be short-lived (under 10 years).
Tree Prunus × incam 'Okame' [Okame Cherry] 'Okame' is a small cherry tree that performs well in the landscape and provides multi-season interest with beautiful, pink flowers very early in the spring, handsome dark green summer foliage, excellent orange, red, and bronze fall color, and shining, reddish bark in the winter.
