This is one of the hardiest passion flowers, dying back in colder climates, but hardy to 10 degrees F. (It is suspected that the specimen at Purdue University in West Lafayette, IN (USDA zone 5a), is kept alive in the winter by the heat radiated from the greenhouses and building it is planted near.) Plant […]
Excellent large shrub specimen with handsome, lustrous, evergreen foliage, prominently red new growth in the spring, and small, interesting, urn-shaped flowers. Leaf spots, Phytophthora induced die back, and lace bug are most problematic. Struggles in alkaline and heavy, wet soils. […]
One of the best evergreen ground covers for a shady location. Spreads quickly after establishment. Subject to stem-rot disease when grown vigorously and in wet soil. Also does not like very dry soil and full sun. Does best with regular watering on well-drained soil. […]
Most are usually dioecious and have a deep tap root which makes large plants difficult to transplant. Flowers attract bees while the fruit attracts birds and many mammals. The fruit is astringent when green, sweet and edible when ripe. Fruits, twigs, and leaves can be a littler problem. […]
Beautiful white bark, although becomes dirty gray with age. Does well on the poorest of sterile soils, seeds, and suckers quickly. Grows on sandy, rocky and even gravelly sites. Tolerates both wet and dry conditions. Prefers full sun. Susceptible to leaf miner and cankers; more resistant to the bronze birch borer. Leaf minors especially problematic. […]
A more refined plant than the parent S. orbiculatus, perhaps more showy in flower and fruit and more useful in the shrub border. Useful as a bank cover or large scale groundcover. Transplants well. This plant has a beautiful fruit show and is shade tolerant, however, it is also a twiggy, “garbage can plant” (collects […]
Very tolerant of soils and environment, except it does not tolerate shade. Can be trained as a standard. May require special support on some surfaces, especially as it becomes large and heavy (could pull down weaker structures). May also require pruning to keep size in check. […]
Tolerates full shade, and requires at least partial shade. Does well under shallow-rooted trees with some irrigation. One of the most effective ground covers in resisting encroachment of weeds. Volutella leaf blight can be problem. […]
One of the strongest-climbing vines, given solid support for attachment of the adhesive discs on tendrils (not root). Not a vine for trellises or fences. Tolerates any soil, and sun or shade. Limited value as groundcover. […]
Beautiful, fragrant purple flowers and foliage. Great plant for fine texture in the front landscape borders. Pruning to the ground every 3 to 4 years keeps the foliage full to the ground and produces uniform, fresh new growth. […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department