Flower color bleaches out in high pH. Subject to winter burning of foliage in exposed sites near the limits of its range. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices. […]
Read More… from Rhododendron catawbiense ‘Pearce’s American Beauty’
In the wild, this specimen can grow up to 60′ high, much larger than the mature landscape tree which ranges from 20-40′ high. The outstanding, multi-colored bark is rich and flaking, ranging from soft grays and browns to orangish brown. There are no serious pests or diseases for this specimen. […]
Carefree Beauty is a lower maintenance, compact rose with fragrant, semi-double pink flowers from June to frost. While this rose has some resistance to powdery mildew and blackspot, 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 […]
‘Coral Beauty’ is a fast-growing, prostrate (1-2′ high), evergreen shrub that makes a good, quick-effect groundcover. It has excellent, glossy evergreen foliage and produces an abundance of coral-red fruits. Unfortunately its appearance tends to become ratty with age. […]
‘China Girl’ is a dense, rounded holly hybrid with lustrous evergreen foliage. This cultivar is female and ‘China Boy’ is the pollinator if fruit set is desired. Winter dessication injury to leaves in exposed sites. […]
As its name implies, ‘Dark Green Spreader” is a deep green spreading form that is twice as wide as it is tall. 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 […]
This cultivar has yellow stems that are especially prominent in the winter. It has better resistance to canker than the similar Cornus sericea ‘Flaviramea’. Grows well in a variety of situations, including wet soil. Easy to transplant. Relatively trouble-free. A three-year pruning cycle improves form, vigor, and winter stem color effect. Cutting all stems 6-12" […]
‘Synnesvedt’, often sold under the name Chicago Lustre, is known for attractive, clean, lustrous foliage and abundant blue-black fruits. 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. […]
Read More… from Viburnum dentatum ‘Synnesvedt’ [sold as Chicago Lustre®]
Hypericum kalmianum ‘Gemo’ is a compact, mounded deciduous shrub that produces a profusion of small, interesting, bright yellow flowers beginning late spring and continuing all the way into fall. […]
This American Elm cultivar retains the attractive vase-shaped form that the American Elm is known for and has some resistance to both the elm leaf beetle and Dutch Elm Disease, which is caused by Ophiostoma ulmi. (Dutch Elm Disease has lead to the near extinction of the American Elm in the US). Many other diseases […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department