Tree Indiana Native Fraxinus pennsylvanica [Green Ash] Produces many weed seedlings, except for seedless cultivars. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.
Tree Fraxinus pennsylvanica 'Marshall’s Seedless' [Marshall's Seedless Green Ash] This cultivar is marketed as seedless, but there have nonetheless been many females in the population with heavy fruit set. This tree is quite adaptable and fast growing, but also has weak branch angles. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will…
Tree Fraxinus pennsylvanica 'Patmore' [Patmore Green Ash] 'Patmore' is a vigorous male, seedless tree and is considered to be superior to many Green Ash cultivars, including 'Marshall's Seedles'. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.
Tree Fraxinus pennsylvanica 'Summit' [Summit Green Ash] 'Summit' is a vigorous, seedless male cultivar with a strong central leader. It has excellent golden fall color, but tends to drop its leaves early in the fall. An unattractive ash flower gall (formed by mites) can develop on male flowers and persists into winter. Emerald Ash Borer is severely affecting all species of this genus. Damage can be prevented with the appropriate pesticide, but the treatment cost will eventually exceed replacement cost.
Tree Ginkgo biloba [Ginkgo] The Ginkgo is a long-lived deciduous conifer and gymnosperm. It is frequently termed a "living fossil," as it is the only surviving member of a group of ancient plants with fossils dating back to 270 million years ago. This plant is dioecious, and the so-called fruits (which are actually naked seeds with a soft seed coat) are borne on female trees, are green or tan-orange, and have an offensive odor when ripe and decaying. Fruits…
Tree Indiana Native 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.
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).
Herbaceous Heuchera villosa 'Autumn Bride' [sold as Autumn Bride Hairy Alumroot] [Autumn Bride Hairy Alumroot] Autumn Bride Hairy Alumroot has showy white flowers that bloom above foliage.