Shrub Pinus nigra 'Hornibrookiana' [Dwarf Austrian Pine] 'Hornbrookiana' is a compact and mounded dwarf cultivar. Tolerates city conditions. Tolerates clay, dry, and alkaline soils, and heat. May be badly damaged by sapsuckers. Sphaeropsis tip blight is a more serious problem. Pine foliar nematode (transmitted by a beetle) can also be problematic.
Tree Pinus ponderosa [Ponderosa Pine] Pinus ponderosa is a very tolerant tree, adaptable to a wide range of conditions, except for shade and poor drainage. Older trees often lack lower limbs. It is dominant in western North America, where it can reach up to 230 feet tall, and is an extremely important timber tree.
Tree Indiana Native Pinus resinosa [Red Pine] Forms a decent screen when young, especially on poor, dry soils, but soon drops lowers limbs necessitating the need of companion plants to complete the screen. Develops a shorter, thicker trunk when grown in the open. Pine bud moth (as well as other moths) can be problem if not controlled. Foliage presentation not always full or clearly esthetic. Best in groves or plantations where bark color can be admired.
Shrub Prunus laurocerasus 'Otto Luyken' [Otto Luyken Cherry Laurel] 'Otto Luyken' is a broad, compact evergreen shrub that produces numerous small, fragrant, white flowers in upright clusters in mid to late spring. This plant is shade tolerant, pH adaptable, and salt spray tolerant, but requires good drainage. Do not over fertilize.
Shrub Indiana Native Prunus pumila [Sand Cherry] Prunus pumila is a creeping, low-growing small shrub naturally found in sandy locations, such as dunes, where it acts an important stabilizer. The cherry fruits are too bitter to eat fresh, but can be used in jams and jellies.
Shrub Prunus tomentosa [Nanking Cherry] Among earliest of Prunus to flower. Subject to the troubles of other cherries (fireblight, etc.), but less so than some. Leaf spot in wet seasons. Often short-lived.
Shrub/Tree InvasiveThis plant is considered invasive Rhamnus cathartica [Common Buckthorn] Tolerates most sites. Dioecious. Very invasive, by the seeds that birds love to eat; probably best to refrain from planting this species in the landscape. Susceptible to rusts (Puccinia coronata), that also attacks oats (in oat growing areas, buckthorn eradication is recommended). The bark, leaves, and fruit were once used in purgatives, thus one of this plant's common names, "Purging Buckthorn".
Shrub Rhododendron × 'Aglo' (P.J.M. Hybrid Group) [Aglo Rhododendron] 'Aglo' is a compact grower and early bloomer. One of the most cold tolerant flower buds of the evergreen rhododendrons. Avoid harsh, dry, windswept sites. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhododendron catawbiense [Catawba Rhododendron] The Catawba Rhododendron is considered to be one of the hardiest rhododendron species. Beautiful plant when it is used in mass. Flower color of the species does not combine well with some other flower colors. Flower color bleaches out in high pH. Subject to winter burning of foliage in exposed sites near the limits of its range. Both flowers and foliage are of equal value in the landscape. Cultivars are usually less hardy than species.…
Shrub Rhododendron catawbiense 'Lee’s Dark Purple' [Lee's Dark Purple Catawba Rhododendron] The compact, but wide and bushy 'Lee's Dark Purple' is common in commerce. Avoid harsh, dry, windswept sites. Subject to winter burning of foliage in exposed sites near the limits of its range. Withstands -20 degrees Fahrenheit. Flower color bleaches out in high pH. Interveinal chlorosis can also occur in high pH soils. Sulfur can be added to increase the acidity of the soil, but this is not a permanent solution to these problems. Susceptible…
