A favorite for espalier training, because of the adaptable branching habit, showy fruits, and vigourous growth. Adapted to a variety of soils and environments but is susceptible to scab. ‘Lalandei’ is the most popular Scarlet Firethorn cultivar in northern areas, although it may winter burn. […]
This cultivar has a tight, columnar habit and holds this form into maturity. Stunning, multi-colored mottled and exfoliating bark. Grows well under city conditions. Good resistance against Dutch elm disease, elm leaf beetle, and Japanese beetle. Slightly weak wooded, so sometimes damaged by ice storms. […]
Read More… from Ulmus parvifolia ‘BSNUPF’ [sold as Everclear®]
‘Mushashino’ has an extremely upright, narrow, vase-shaped form with tight branching. Zelkova serrata has a beautiful wood grain for furniture, etc. Minor susceptibility to various elm diseases and pests, but resistant to Dutch Elm Disease. […]
This cultivar of the Shadblow Serviceberry is known for its bright, multi-colored fall foliage that can be a combination of reds, oranges, and yellows. Spectacular, yet short lived, white flowers bloom in early spring. Given its upright, dense habit, it is best used as a screen or hedge. Mildew resistant. […]
Read More… from Amelanchier canadensis ‘Glenn Form’ [sold as Rainbow Pillar®]
The Flowering Crabapple is a popular small ornamental tree with an extremely showy flower display in the spring. Malus transitoria has deeply cut (and occassionally entire) foliage. Tends to flower and fruit in alternate years. Well-drained heavy loam soils and full sun promote best growth. Can be susceptible to many pests and diseases, including apple […]
‘Arcadia’ is a hardy (USDA zone 3), juniper blight resistant, low-growing juniper featuring dense layers of kelly-green branches. Widely adapted to soils and climates. Tolerant of slightly alkaline, but not wet, soils. Plants of all ages are susceptible to mite infestation. Does not do well in high humidity and high night temperature environments. Can develop […]
‘Dark Horse’ is a compact, dwarf cultivar with deep purple leaves and abundant pink flowers. Spreading, dense, rounded shrub, with branches eventually arching to the ground. Extremely adaptable, but prefers good drainage and full sun. Some drought sensitivity. A 3-year pruning cycle improves form and prevents development of legginess. Flowers attract hummingbirds. […]
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, […]
‘Viridis’ is a narrow columnar cultivar with bright green, twisted needles that emerge bright yellow-green in the spring. Withstands nearly any amount of pruning. Black vine weevil can be a problem, but this is rare. Newly planted yews do not perform well in poorly drained soils. Perhaps overused in the urban landscape. Can be severely […]
The Flower Carpet Rose is a low-growing, compact, heat tolerant plant that produces many semi-double, yellow flowers spring through fall. Although this variant is quite disease resistant, good cultural practices are still important. Avoid wetting the foliage when watering, place the plant in an area with good air circulation, and remove dead or diseased plant […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department