Tree Indiana Native Quercus imbricaria [Shingle Oak] Somewhat tolerant of city conditions. Can be pruned into a hedge. Leaves persist into winter, after the normal leaf raking period, and then fall. Oak gall susceptible, but a minor problem.
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 catawbiense 'Chionoides' [Chionoides Rhododendron] White flowers have the yellow centers and make numerous dome shaped trusses. The broad, dense plant is easy to grow and has attractive, narrow foliage.
Shrub Ribes alpinum [Alpine Currant] Dioecious (male clones used mostly because these are thought to be rust resistant). Quite resistant to white pine blister rust, whereas other Ribes are not. Many insects and diseases. Flowers not showy and fruits not edible.
Shrub Rosa × 'Double Delight' [Double Delight Hybrid Tea Rose] The hybrid tea rose is a deciduous shrub with extremely fagrant flowers that have creamy white centers and red edging. These flowers can be single, semi double or double.
Shrub Rosa rugosa [Rugosa Rose] Widely adapted to soils and exposures, but especially good in full sun on dry soils. Relatively trouble-free among roses, even resists the common rose pathogens and phytopagous insects. The hips (rose fruits) are a rich source of vitamin C and used commercially in teas. Can get borers in canes (rarely). Good cultural practices are important for roses in order to prevent disease and other pests. Avoid wetting the foliage when watering, place the plant in…
Shrub Rosa × 'Thérèse Bugnet' [Double Rugosa Rose] 'Thérèse Bugnet' is a hybrid cultivar of Rosa rugosa that has fragrant, double, pink flowers and lustrous, red canes. Susceptible to rose stem girdler and slightly susceptible to black spot. Good cultural practices are important for roses in order to prevent disease and other pests. Avoid wetting the foliage when watering, place the plant in an area with good air circulation, and remove dead or diseased plant matter as soon as possible. Widely adapted to…
Shrub Rosa × 'Radwhite' [sold as White Knock Out®] [White Knock Out Rose] The White Knock Out Rose is a compact shrub with matte green foliage, making the creamy white flowers stand out against the dark leaves.
Shrub/Tree Salix caprea [Pussy Willow] Salix caprea is one of several species commonly referred to as "Pussy Willows". The common name is derived from the silky soft male catkins (species is dioecious). Tolerates heavy pruning and can be cut to the ground every 3-5 years to maintain size. The wood of this plant is weak and easily damaged. This species is susceptible to many pests and diseases.
Shrub Salix purpurea 'Canyon Blue' [Canyon Blue Purpleosier Willow] Canyon Blue Purpleosier Willow is very similar to the compact cultivar Nana in its habit and shape. What stands out is its deeper bluish leave color. This is a great choice for wet areas, soil stability, and in rain gardens. Unlike most willows (Salix ssp.), the Purpleosier tends to stay a compacted shrub and will sucker less than others in this genus.
