Overused, weak wooded, short-lived. Flowers are malodorous and often killed by late spring freezes. Forms narrow crotch angles that can result in a larger tree literally splitting in two. Very small fruits are a litter problem when abundant. ‘Capital’ is narrow-columnar in form and is severely susceptible to fireblight. The aesthetics of this cultivar decrease […]
Generally considered to be one of the best cultivars of P. calleryana. While still prone to limb breakage, it is stronger wooded than other variants. The Chanticleer Callery Pear is also known for its resistance to fireblight. Flowers are malodorous and often killed by late spring freezes. Very small fruits are a litter problem when […]
Read More… from Pyrus calleryana ‘Glen’s Form’ [sold as Chanticleer®]
A highly variable species, in cold and drought hardiness, color, and form. For use in the Midwest, select the hardiest available forms. Prefers atmospheric moisture. Historically, has been an important timber tree in the West. […]
Pseudotsuga menziesii is a highly variable species, in cold and drought hardiness, color, and form. For use in the Midwest, select the hardiest available forms. Prefers atmospheric moisture. Historically, has been an important timber tree in the West. ‘Fastigiata’ is a dense, columnar cultivar with distinctly upright branches. […]
A favorite for espalier training, because of the adaptable branching habit and showy orange-red fruits. Tends to be semi-evergreen in cooler climates and evergreen in warmer climates. Adapted to a variety of soils and environments. Fireblight can be serious. Other problems are scab and leaf and twig blight. […]
‘Gnozam’ is a dense, compact shrub that bears numerous attractive orange berries in the fall and through the winter, but is severely susceptible to scab. Firethorns are a favorite for espalier training, because of the adaptable branching habit and showy fruits. Tends to be semi-evergreen in cooler climates and evergreen in warmer climates. Adapted to […]
Overused, weak wooded, short-lived. Flowers are malodorous and often killed by late spring freezes. Some fireblight susceptiblity. Forms narrow crotch angles that can result in a larger tree literally splitting in two. Very small fruits are a litter problem when abundant. Considered invasive in many areas. […]
The Japanese Flowering Cherry prefers rich, moist, well-drained loams and full sun. It can tolerate part shade (at the expense of blooms), as well as heat, humidity, and even some drier soils (once it is established). This tree is susceptible to many pests, including leaf spot, powdery mildew, fireblight, Japanese beetles, aphids, scale, borers, leafhoppers, […]
Prunus is a large and important genus of over 400 species of mostly deciduous trees and shrubs, in addition to countless hybrids. Important members of this genus include cherries, almond, peaches, plums, and apricots. Prunus can be subject to many pests and diseases. […]
Among earliest of Prunus to flower. Subject to the troubles of other cherries (fireblight, etc.), but less so than some. Leaf spot in wet seasons. Often short-lived. […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department