Shrub Indiana Native Ilex glabra [Inkberry] This species, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Withstands severe pruning. Winter desiccation injury to leaves occurs in exposed sites, with severe yellowing when temperatures drop below -20 degrees F. Avoid high pH soils.
Tree Indiana Native Ilex opaca [American Holly] This species, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Winter dessication injury can occur on leaves in exposed sites. Holly leaf miners are one of the major problem pests for Ilex opaca.
Shrub Indiana Native Ilex verticillata [Common Winterberry] Excellent show of bright red berries in winter and fruiting color is best in full sun. This species, like other hollies, is dioecious, so plant females for fruit and an occasional male for pollination. Adaptable to wet soils, but tolerates more normal conditions also. Native habitats are swampy areas. Tends to sucker and can be quite twiggy. Leaf spot and mildew can be serious problems. Develops chlorosis on alkaline soils.
Shrub Ilex verticillata 'Berry Heavy' [Berry Heavy Common Winterberry] Bright red fruits abundantly set; 6 to 8' high; 'Jim Dandy' is recommended as the male pollinator; Spring Meadow introduction.
Shrub Indiana Native Itea virginica [Virginia Sweetspire] Quite drought and pH tolerant although best situated in moist areas with some acidity. Flowers best in full sun, but is shade tolerant. Pruning sometimes needed to maintain form, primarily for removal of wayward branches. Avoid pruning in late fall or winter as flowers form on previous season's wood. Can be subject to flea beetle and leaf spot.
Tree Indiana Native Juglans nigra [Black Walnut] Nuts are a serious litter problem, staining sidewalks and driveways. Juglone (found in leaf litter and possibly roots) is toxic to many plants, like tomatoes, blackberries, red pines, and many others. Black Walnut wood is valuable and has a variety of commercial uses, especially for furniture.
Shrub Indiana Native Lindera benzoin [Spicebush] The Spicebush is an excellent native shrub for naturalizing or in borders. Tolerant of full shade, although it tends to become leggy in lower light situations. Difficult to transplant; use container-grown plants. Prefers moist soils; not especially drought tolerant. Dioecious.
Tree Indiana Native Liquidambar styraciflua [American Sweetgum] Handsome shade tree with few troubles and outstanding seasonal interest. Widely adapted to soils and climates, as evidenced by its wide range. Fall foliage coloration varies greatly in timing and intensity among individuals. Rather difficult to transplant in large sizes. Varies widely in hardiness. Select native northern stock for use in North. Horned fruits can be a serious litter problem, dulling mower blades and injuring bare feet. Also see Liquidambar styraciflua (Shuttle Gum Group).
Tree Indiana Native Liquidambar styraciflua (Shuttle Gum Group) [American Sweetgum] This group of Liquidambar styraciflua (Sweetgum) trees was germinated in August of 1984 aboard the space shuttle Discovery. Purdue astronaut Charles Walker of Bedford, Indiana, brought back 200 tiny trees; these recognize Purdue's many astronauts. Sweetgums are handsome shade trees with few troubles and outstanding seasonal interest. Widely adapted to soils and climates, as evidenced by their wide range. Fall foliage coloration varies greatly in timing and intensity among individuals. Rather difficult to transplant in…
Tree Indiana Native Liriodendron tulipifera [Tuliptree] Handsome, tall shade tree with strong central leader. Performs best in good soil with adequate moisture. Variable in hardiness, depending on geographic source. Use native stock when possible. State tree of Indiana, Kentucky, North Carolina, and Tennessee. Slightly weak-wooded. Subject to damage in very windy sites. Subject to aphid and scale insects when weakened. Needs good drainage and a lot of soil (tree lawn may be too small). Its poorly branched fleshy root system (taproot)…
