Tree Indiana Native Audio Recording AvailablePurdue Plant Doctor Available Gleditsia triacanthos f. inermis [Thornless Common Honeylocust] This large tree 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. Indiana NativeAudio Recording AvailablePurdue Plant Doctor Available
Tree Purdue Plant Doctor Available 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. Purdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available 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… Audio Recording AvailablePurdue Plant Doctor Available
Tree Audio Recording AvailablePurdue Plant Doctor Available 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… Audio Recording AvailablePurdue Plant Doctor Available
Tree Indiana Native Audio Recording AvailableID That Tree Video Available 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. Indiana NativeAudio Recording AvailableID That Tree Video Available
Tree Audio Recording Available 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. Audio Recording Available
Tree Audio Recording Available Halesia carolina [Carolina Silverbell] This small tree is interesting in bloom and rather neutral otherwise, but relatively trouble free and useful in many situations as a neutral background plant, or for its flowers. Best grown as a single stem and allowed to branch low (20-30"). Does not transplant well (a particular problem with field-grown plants). Audio Recording Available
Tree Audio Recording Available Halesia carolina 'Arnold Pink' [Pink Carolina Silverbell] This small tree is interesting when in bloom with pink bell-shaped flowers that are larger than the straight species, but this plant is rather neutral otherwise. However, it is relatively trouble free and useful in many situations as a neutral background plant, or for its flowers. Best grown as a single stem and allowed to branch low (20-30"). Does not transplant well (a particular problem with field-grown plants). Audio Recording Available
Tree Halesia carolina 'Rosea' [Pink Mountain Silverbell] The Pink Mountain Silverbell is interesting in bloom (pale pink flowers), rather neutral otherwise, but relatively trouble free and useful in many situations as a neutral background plant, or for its flowers. Flowers and fruits are larger than the related species H. carolina. Best grown as a single stem and allowed to branch low (20-30"). Does not transplant well (a particular problem with field-grown plants).
Shrub Purdue Plant Doctor Available Hamamelis × intermedia 'Sunburst' [Sunburst Witchhazel] The Sunburst Witchhazel is a large, vase-shaped deciduous shrub that produces a profusion of interesting, strap-like lemon-yellow and red flowers in mid to late winter. Purdue Plant Doctor Available
Indiana Native
![Gleditsia triacanthos f. inermis 'Impcole' [sold as Imperial®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-21412-6-150x150.jpg)
![Gleditsia triacanthos f. inermis 'Skycole' [sold as Skyline®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-264-7-150x150.jpg)
![Gleditsia triacanthos f. inermis [sold as Shademaster®]](https://www.arboretum.purdue.edu/explorer/wp-content/uploads/sites/2/2023/01/NAME-263-150x150.jpg)
