Shrub InvasiveThis plant is considered invasive Lonicera maackii [Amur Honeysuckle] Widely adaptable to different soils and exposures. Can be trained into a small patio tree. Suckers freely, requiring pruning in intensive situations. Seeds, carried by birds, germinate freely, and weed seedlings result. High shade tolerance contributes greatly to its highly invasive character. Perhaps the worst woody weed in the Midwestern and Northwestern US.
Tree Indiana Native Maclura pomifera [Osage-orange] Withstands wind and dry conditions well. Used by farmers as a hedgerow for livestock fencing because of its thorniness. Highly deer resistant. Fruits are said to be an insect and rodent repellent. Extremely decay resistant wood, containing 1% by weight 2,3,4,5-tetrahydroxystilbene (a fungitoxic compound). Large fruits create litter problem; select staminate trees to avoid fruit (unless you believe the fruits are of interest). Due to invasive root system, do not plant near sewer or drainage…
Shrub Microbiota decussata [Russian Arborvitae] The Russian Arborvitae is a low spreading, groundcover conifer that was discovered in Russia in 1921. It is generally easy to grow and can be a good substitute for Juniper in part shade situations, although it is best in full sun. This plant is not tolerant of extreme heat. Seeds of this plant can remain in a dormant state for up to 28 months.
Shrub Microbiota decussata 'Prides' [sold as Celtic Pride™] [Celtic Pride Russian Arborvitae] The Russian Arborvitae is a low spreading, groundcover conifer that was discovered in Russia in 1921. It is generally easy to grow and can be a good substitute for Juniper in part shade situations, although it is best in full sun. 'Prides', often sold under the name Celtic Pride is known for its excellent disease resistance and tolerance to difficult conditions. Seeds of this plant can remain in a dormant state for up to 28…
Tree InvasiveThis plant is considered invasive Morus alba [White Mulberry] It will grow in nearly any situation. There are occasional problems with cankers, mites, and bacterial blights. Morus alba is very similar to the native red mulberry (Morus rubra), but may be distinguished by the leaves. Its leaves have glossy surfaces whereas the leaves of Morus rubra do not. Morus alba is found throughout the United States, where it invades old fields, urban lots, roadsides, forest edges, and other disturbed areas. It poses an ecological…
Liana (Climbing Vine) Indiana Native Parthenocissus quinquefolia [Virginia Creeper] One of the strongest-climbing vines, given solid support for attachment of the adhesive discs on tendrils (not root). Not a vine for trellises or fences. Tolerates any soil, and sun or shade. Limited value as groundcover.
Liana (Climbing Vine) Parthenocissus tricuspidata [Boston Ivy] One of the strongest-climbing vines, give solid support for attachment of the adhesive discs on tendrils. Not a vine for trellises or fences. Very tolerant of urban soils. Not a good groundcover.
Tree InvasiveThis plant is considered invasive Phellodendron amurense [Amur Corktree] A striking tree for its interesting bark and massive framework. Widely adaptable to soil, trouble-free, and drought and pollution resistance. Easily transplanted. May be less hardy when young and rapidly growing. Fruits smell like turpentine when crushed (or stepped on). This tree is demonstrating invasive characteristics in suburban and urban fringe forests. It escapes intended plantings to invade and displace native hardwood forests. Note: only female plants have the potential to become invasive. Phellodendron amurense…
Tree Picea glauca [White Spruce] Best in full sun, but tolerates some shade. Withstands heat, cold, drought, wind, and crowding. Often found at the arctic tree line. Slight susceptibility to trunk and root rots, bagworms, sawflies, and mites. Except for its use in the far North, other evergreens have better overall aesthetics for Midwestern and Eastern states.
Shrub/Tree Picea glauca var. conica [Dwarf Alberta Spruce] This commonly available dwarf variety has a very dense, conical habit. Best in full sun, but tolerates some shade. Withstands heat, cold, drought, wind, and crowding. Slight susceptibility to trunk and root rots, bagworms, sawflies, and mites. Except for its use in the far North, other evergreens have better overall aesthetics for Midwestern and Eastern states.