Shrub Rhododendron catawbiense 'Mrs. C.S. Sargent' [Mrs. C.S. Sargent Catawba Rhododendron] Flower color bleaches out in high pH. Subject to winter burning of foliage in exposed sites near the limits of its range, however, this is a good cultivar for cold areas. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhododendron catawbiense 'Pearce’s American Beauty' [Pearce's American Beauty Catawba Rhododendron] Flower color bleaches out in high pH. Subject to winter burning of foliage in exposed sites near the limits of its range. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhododendron × 'Elite' (P.J.M. Hybrid Group) [Elite Rhododendron] 'Elite' is a large, vigorous rhododendron and one of the earliest P.J.M. cultivars to bloom. One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become a dirty looking lavender soon after opening. 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 × 'Holden' (Shammarello Hybrid Group) [Holden Rhododendron] Compact plant with a long bloom season. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhododendron × 'Northern Starburst' (P.J.M. Hybrid Group) [Northern Starburst Rhododendron] One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become a dirty looking mauve-lavender soon after opening. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhododendron × 'Olga Mezitt' (P.J.M. Hybrid Group) [Olga Mezitt Rhododendron] 'Olga Mezitt' is a vigorous rhododendron with pink flowers. One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become dirty looking soon after opening. 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 × 'P.J.M.' (P.J.M. Hybrid Group) [P.J.M. Rhododendron] One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become a dirty looking lavender soon after opening. Quite variable in form and flower color. 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 × 'Victor' (P.J.M. Hybrid Group) [Victor Rhododendron] The compact and slow-growing cultivar 'Victor' is the earliest of the 'P.J.M' Hybrid group to bloom. One of the most cold tolerant flower buds of the evergreen rhododendrons. Flowers can become a dirty looking lavender soon after opening. Susceptible to a large number of pests and diseases, which can largely be prevented by good cultural practices.
Shrub Rhodotypos scandens [Black Jetbead] Relatively trouble-free. Tolerant of a variety of soils and environments, particularly dryness and shade. Commonly becomes straggly if growing in a site that is too dry or too wet.
Shrub Indiana Native Rhus copallinum [Flameleaf Sumac] The Flameleaf Sumac is a large shrub or small tree known for its extraordinary, "flaming" red fall color. Its form is initially compact, but then becomes quite open and irregular with age. Spreads by root suckers and forms large colonies, making it inappropriate for small areas.
