Tree Gleditsia triacanthos f. inermis 'Impcole' [sold as Imperial®] [Imperial Thornless Honeylocust] This rounded, compact, and low-fruiting cultivar has finely compound leaves that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can be controlled with spraying.
Tree Gleditsia triacanthos f. inermis 'Skycole' [sold as Skyline®] [Skyline Thornless Honeylocust] The Skyline Thornless Honeylocust is a nearly fruitless compact, pyramidal tree with a strongly upright habit and finely compound leaves that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can be controlled…
Tree Gleditsia triacanthos f. inermis [sold as Shademaster®] [Shademaster Thornless Honeylocust] The Shademaster Thornless Honeylocust is a popular cultivar that is nearly fruitless and has dark green, finely compound leaves on ascending branches that provide a pleasant, dappled shade in the summer. The thornless forma inermis is only sold in commerce, as the profuse thorns of the species type can be a liability. Mimosa webworm and locust mite are serious pests in the Midwest, and are becoming more serious (especially in areas tending toward monoculture). Can…
Tree Indiana Native Gymnocladus dioicus [Kentucky Coffeetree] Gymnocladus dioicus is a large deciduous tree with strong winter character from the branches and bark. Drops pods (female trees) and twigs, frequently causing litter problem, thus eliminating the straight species as a good street tree. Seeds were once used by US settlers as a coffee substitute, however pulp and seeds are toxic when not properly and completely roasted.
Tree Gymnocladus dioicus 'Espresso' [Espresso Kentucky Coffeetree] Gymnocladus dioicus 'Espresso' is a large, male, fruitless deciduous tree with strong winter character with its vase-like habit and rough bark.
Shrub/Tree Indiana Native Hamamelis virginiana [Common Witchhazel] Flowers are in evidence because of their spicy fragrance before they are visually obvious, but are fairly showy after leaf drop. Should not be pruned (tip pinching would be acceptable to direct growth).
Liana (Climbing Vine) InvasiveThis plant is considered invasive Hedera helix [English Ivy] Tolerant of heavy shade to full sun except at the northern limits of its useful range, where some protection from full winter sun is necessary. Useful as a groundcover only, not as a vine, in Zone 5b, except hardiest cultivars in sheltered sites. Vigorous and can be a weed problem in certain regions of the country (like the NW US) where it can smother woodlands. Poisonous fruits, but it generally takes many years for it…
Liana (Climbing Vine) InvasiveThis plant is considered invasive Hedera helix 'Baltica' [Baltica English Ivy] 'Baltica' has smaller leaves with more prominent white veination. Foliage becomes tinged with purple in the winter. Tolerant of heavy shade to full sun except at the northern limits of its useful range, where some protection from full winter sun is necessary. Vigorous and can be a weed problem in certain regions of the country (like the NW US) where it can smother woodlands. Poisonous fruits, but it generally takes many years for it to…
Liana (Climbing Vine) InvasiveThis plant is considered invasive Hedera helix 'Thorndale' [Thorndale English Ivy] 'Thorndale' is a very hardy cultivar that has large, glossy leaves with striking white veination. Tolerant of heavy shade to full sun except at the northern limits of its useful range, where some protection from full winter sun is necessary. Useful as a groundcover and vine. Vigorous and can be a weed problem in certain regions of the country (like the NW US) where it can smother woodlands. Poisonous fruits, but it generally takes many…
Shrub/Tree Hibiscus syriacus [Rose-of-Sharon] Flowers single or double, in wide range of colors (depending on cultivar), are born on new growth, so heavy pruning in the spring enhances blooming later that summer. Pruning to functional size of 4-5' produces excellent habit and flowering. Becomes leggy with age if not pruned. Prune hard when young to promote more branching. Occasionally, stems are killed back in winter; nevertheless, flowering on new growth is not reduced. Generally not the best for solid…
