The Warsaw Nike Clematis has large, rich, velvety reddish-purple flowers that develop on both old and new growth. The root system should be kept cool by deep soil preparation and mulching around base. It is said that Clematis prefer “a warm top and a cool bottom”. While this is generally true, provide some shade during […]
The Jackman Clematis is a hybrid that has flowers with large, rich purple sepals, which develop on new growth. The root system should be kept cool by deep soil preparation and mulching around base. It is said that Clematis prefer “a warm top and a cool bottom”. While this is generally true, provide some shade […]
Keeping the root system cool by deep soil preparation and mulch around the base is beneficial. Climbs by twining stems and clasping leaves, so needs trellis or wire support. Extremely vigorous; can engulf an entire structure. Prune out old wood, and dead wood that arises from winter-kill. […]
A highly ornamental native tree, even though the pendulous clusters of flowers do not appear in great numbers every year. Well-adapted to Midwest conditions. Develops a tap root. Does not flower fully each year; part of a tree may flower one year, part the next, but the effect is striking even when only certain branches […]
Dioecious with male plants showier in flower than females; plant a female if fruits are desired. Plants of known sex are not usually available unless selected in the flowering size. One of the last plants to leaf out in the spring. […]
The Chinese Fringetree can be a large, multi-stemmed shrub or a small single- or multi-trunked tree. In late spring to early summer, Chionanthus retusus produces a beautiful show of pure, white, fringe-like flowers that are borne in clusters on branch ends. For optimal flowering, place in a full sun location. This species is dioecious and […]
The Threadleaf Sawara Falsecypress has very fine-textured, drooping foliage and branches. While this slow-growing plant may eventually reach 15′ tall, it will likely take well over 15 years to reach that point. ‘Filifera’ can grow in average soils, as long as they are well-drained. Provide shelter from the wind. […]
Chamaecyparis obtusa ‘Filicoides’ is a slow-growing, irregularly-branched, open shrub or small tree that has straggly branches with clusters of fernspray foliage. This plant grows well in average soils, as long as they are well-drained. Provide shelter from the wind. […]
The species and full-size variants are often used as "quick" foundation and corner plantings, and just as quickly outgrow these situations. These variants should be grown as trees, and the dwarf variants used in more intensive situations. Numerous brown needles and branchlets are retained, and not especially attractive. This species requires good drainage and does […]
The full-size tree is a fine screening plant. Does best with ample soil and atmospheric moisture. A very dry site exposing the plant to afternoon sun and wind in winter could lead to browning and discoloration. Avoid hard pruning into old wood, it will not regenerate new shoots. […]
The Purdue Arboretum is a collaboration between the Department of Horticulture and Landscape Architecture and Physical Facilities Grounds Department