The Greater Periwinkle is very similar to the Common Periwinkle (Vinca minor), except it is overall larger and less cold hardy, only marginally hardy in USDA zones 5 and 6. ‘Variegata’ has irregular, creamy white markings along leaf margins. A great evergreen ground cover for shady locations. Spreads quickly after establishment in warmer climates. Does […]
‘Anthony Wayne’ is an interesting columnar, female cultivar that has strongly upward growing shoots tipped with bright green new growth. 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 […]
‘Flemer’ is a dense and compact female cultivar with deep green foliage that maintains its color well through winter. 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 […]
The Slippery Elm has a vase-shaped form, similar to that of the American Elm (Ulmus americana), but with more ascending branchlets. This tree gained its common name from the moist, slippery, red inner bark chewed by Native Americans and pioneers to quench thirst. Not considered very ornamental for the landscape, due to its coarse texture, […]
Rhamnus frangula is very weedy (invasive in some areas) and adaptable, and generally has an unattractive, leggy habit. Birds love the fruits and spread the seeds. This species is not recommended for use in the landscape. […]
This tree will sometimes be seen growing in a shrub-like habit. A milky sap comes out of the stem when it is cut. Smooth gray bark with longitudinal fissures in an irregular pattern resembles the bark of Acer palmatum, the Japanese Maple. […]
‘China Boy’ is a dense, rounded holly hybrid with lustrous evergreen foliage. This cultivar is male (produces no fruits) and is the pollinator for ‘China Girl’. Winter dessication injury to leaves in exposed sites. […]
This species is outstanding for its landscape interest, making a uniquely picturesque specimen. ‘Umbraculifera’ is an interesting dwarf cultivar, with a spreading, umbrella-like head and can be grown as a shrub or small tree. The flaky, orange-red bark of this plant is quite attractive. […]
The common name of Populus tremuloides is derived from the tendency of the leaves to tremble (quake) in the wind, or even light breezes, due to flattened petioles. This is a fast-growing and short-lived species that regenerates from root suckers and can quickly recolonize disturbed sites. Generally, most of the specimens in a grove of […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department