These evergreen shrubs are small to medium sized with a naturally rounded shape and small leaves. Rhododendrons are a diverse group of plants that also include both evergreen and deciduous azaleas. Elite Rhododendron will grow to be about 6 feet tall at maturity, with a spread of 5 feet. These hybrids resulted from crosses between Rhododendron carolinianum and Rhododendron dauricum var. Series. The Garden wouldn't be the Garden without our Members, Donors and Volunteers. Regeneration of Rhododendron PJM Group Plants From Leaf Explants John E. Preece 1 , Miles R. Imel 2 , A. Shevade 3 Department of Plant and Soil Science Southern Illinois University, Carbondale, IL Abstract A system is described for the regeneration of whole Rhododendron PJM group plants from leaves harvested from shoot cultures. ist ein üppig rosarot blühender, sehr robuster Vorfrühlingsrhododendron.. Weitere Kennzeichen: Unempfindlich gegen Kälte, Hitze und Sonne.Die Blätter verfärben sich im Winter rotbräunlich. sempervirens performed at Weston Nurseries in Massachusetts. Group — группа сортов вечнозелёных мелколистных рододендронов созданная в результате скрещивания R. carolinianum × R. dauricum var. Floridata: Rhododendron Spp. In late spring this plant will be covered in blooms. Blooms early midseason. The PJM group of rhododendrons are the result of a hybridization program that began North America in the 1930's by Massachusetts nurserymen Peter J. Mezitt and son, Edmund Mezitt. Rhododendron Size. Blooms in April. Plant Explorer Link: ON 3 Oct 2018 BY Mackenzie Rosman. J. Mezitt’, but because nobody really knows what is on sale, they are all now called by the general name PJM or PJM Group. Note: Bloom time and 10 year height information are approximate and can vary dependent on weather and growing conditions. PJM rhododendron * Common name: Rhododendron PJM * Botanical name: Rhododendron hybrid * What it is: An oldie-but-goodie group of small-leafed rhododendrons that are some of the earliest shrubs to bloom in very early spring.Most common one blooms magenta, but varieties available in pink or rose. P.J.M. The "PJM" Rhododendron Wednesday, February 25, 2015. I add lots of peat moss, composted manure and leaves when planting. PJM Hybrid Rhododendron Plant Details. Series Description: A pretty broadleaf evergreen shrub with showy purple-pink flowers in spring and a compact upright habit, very hardy, interesting fall coloration; absolutely must have well-drained, highly acidic and organic soil, use plenty of peat moss when planting Group/Class: P.J.M. 3' – 6' tall by 3' – 7' wide. Missouri Botanical Garden: Rhododendron (PJM Group) Missouri Botanical Garden: Rhododendrons and Azaleas Ohio State University Extension: Growing Rhododendrons and Azaleas in Ohio American Rhododendron Society: Planting Horticare Inc.: Acidifying Your Soil Actually a group of hybrids resulting from crosses between R. carolinianum and R. dauricum var. PJM Group (Rhododendron 'PJM') roe-doe-DEN-dron 'PJM' Deciduous Perennial Shrub in the Ericaceae Family Plant Data: Mature Size: 3 - 6 feet tall. Foliage turns dark mahogany in winter. Rhododendron 'PJM' Small Leaved Rhododendron ZONE 4. Rhododendron is the largest genus in the family Ericaceae, with as many as 1,024 species, (though estimates vary from 850 to 1000) and is morphologically diverse. Series Description: A dwarf broadleaf evergreen shrub featuring pretty purple-pink flowers in spring and a compact habit, very hardy, interesting fall coloration; absolutely must have well-drained, highly acidic and organic soil, use plenty of peat moss when planting Rhododendron-Facts. Rhododendron ‘PJM’ blooms reliably in virtually any New England garden. Pruning Pruning group 8. Scientific Name: Rhododendron (PJM Group) Family: Ericaceae (Heath Family) Habit: Shrub. The term PJM rhododendron can refer to any of a group of hybrids with similar parentage bred by Peter J. Mezitt, hence PJM. Rhododendron PJM. Spread: 5 feet. It tends to be a little leggy, with a typical clearance of 1 foot from the … sempervirens. Request Pricing. Rhododendron 'PJM Elite' « Previous Plant | Next Plant ... Our staff is a diverse group of Certified Horticulturists, ready to assist you in a knowledgeable way. Rhododendron (PJM Group) is a series of rhododendron hybrids resulting from crosses between Rhododendron carolinianum and Rhododendron dauricum var. The color is bright lavender pink and the foliage takes on burgundy red hues in winter. It is considered one of the hardiest rhododendrons worldwide. Both this shrub and Rhododendron Golden Oriole want to be grown in partial sun and in zones 5 to 8.; Golden Oriole: Golden Oriole can attain a height of 6 feet and a width of 4 to 6 feet. Lawn & Turf Topics; Landscaping; Garden Design; Edible Gardening Slow growing, dwarf cultivar of PJM rhododendron. Other named clones include ‘PJM Elite’, ‘PJM Regal’ and ‘PJM Victor’. A hybrid rhododendron with close ties to the PJM group, this rounded shoulder-high shrub has medium-sized elliptic dark green leaves that turn deep bronze-purple in fall. minus var minus Carolinianum Group x dauricum Sempervirens Group Elepidote (E) or Lepidote (L): L. Hybridized or Selected by: Mezitt. In Greer's Guidebook to Available Rhododendrons (1996, p. 180), seven PJM's are listed. Find help & information on Rhododendron Pjm Group from the RHS Rhododendron P.J.M. Lepidote Rhododendron: PJM Group. Flower lilac purple to light violet, openly funnel-shaped, wavy edges, 1½" across. Published on Wednesday, February 25, 2015. Consequently, the taxonomy has been historically complex.. Rhododendron 'PJM' PJM rhododendron This popular cold-hardy rhododendron with bright lavender pink flowers in April is a mainstay of landscapes in the cold climates of the Midwest and Northeast. Part to full shade. It takes it’s name because it grows well in the Pennsylvania, Jersey, and Maryland region. P.J.M. Diseases May be affected by various Rhododendron diseases including powdery mildews, rhododendron petal blight, rhododendron bud … It has green foliage. Clusters of large flowers may be lavender, rose, or pink. Pests May be attacked by vine weevil, rhododendron leafhopper, pieris lacebug, scale insects, caterpillars and aphids. For front right foundation bed. How to select sun-tolerant rhodies? Several clones are known as well as a number of forms. These hybrids are vigorous, compact, rounded, small-leaved, broadleaf evergreen shrubs that are noted for having exceptional winter hardiness. Height: 5 feet. Early history. A pretty broadleaf evergreen shrub with showy purple-pink flowers in spring and a compact upright habit, very hardy, interesting fall coloration; absolutely must have well-drained, highly acidic and organic soil, use plenty of peat moss when planting rhododendrons are a group of hybrid culitvar shrubs created by breeding Rhododendron carolinianum with R. dauricum var. The leaves are 3 inches long, smooth green in the summer and purple tinged to bronze in the winter. Gibraltar: Rhododendron Gibraltar puts out masses of flowers of a rich orange color.It can grow to be 5 to 6 feet tall with a spread somewhat less than that. 3 - 7 feet wide. sempervirens, and are noted as having exceptional winter hardiness. Plant Finder; Lawn, Landscape & Garden Design. Cold hardiness temperature is also an approximate value. Aug 3, 2015 - Rhododendron (PJM Group). The "PJM" Rhododendron. Performs in sun with some afternoon shade, and will tolerate winter winds. Rhododendron 'P.J.M.' Group/Class: P.J.M. sempervirens, so expect some differences in flower and leaf color. Flowers are bright pink, purple or lavender-pink and often arrive early in the spring. Leaf Type: Evergreen. Small lavender-pink flowers in early spring. Height, flower color and form, leaf … Rhododendron PJM Group are a specific group of Rhododendron hybrids. Foliage turns deep purple in fall. The PJM group rhododendron are known for their profuse number of flowers and ‘PJM Elite’ is no exception. sempervirens. This article was tagged under: landscaping. Distinctively aromatic green foliage changes with the onset of autumn’s colder weather to an intense, lustrous dark mahogany, becoming verdant again as it drops its flowers in spring. Ball-shaped truss holds 5-12 flowers. There is really only one “true” clone of ‘P. According to the University of Connecticut, there are at least seven known culitvars of varying size, spread flower and leaf coloration, but all are considered to be hardy and easy to grow evergreens in the garden. Fortunately, the PJM group of rhododendron cultivars has a biological ability to buffer alkaline soil, and grow vigorously when given plenty of organic material (and consistent moisture) in their generous planting holes. The medium green foliage takes on purple hues for winter. is not a single cultivar, but rather a group of hybrids that were derived from a particular interspecific cross of R. carolinianum and R. dauricum var. PJM is functionally sterile, so it never sets seeds but instead spends its energy reserves producing flowers. Evergreen. Group/Class: P.J.M. Die Hybride Rhododendron 'Peter John Mezitt', syn. It is the reverse cross and has the reverse name of 'Olga Mezitt'. Rhododendron x ‘P.J.M.’ is a broadleaf rhododendron hybrid popular in North America. Rhododendron 'PJM Group'? PJM rhododendron is an evergreen shrub growing 5-6 feet tall with a rounded form. PJM Rhododendron ‘Amy Cotta’ * ‘Amy Cotta’ is a new version of the PJM Rhododendron that has lavender pink flowers. J. Mezitt’ blooms light purple in early spring, at Mustila in mid-May. Registration Reference: ARS 874. ’P. Click on 'Contact' if you would like written directions to our location. Enjoy the videos and music you love, upload original content, and share it all with friends, family, and the world on YouTube. Besonderheiten. Zone 4 – 8. Useful for smaller landscapes where space is l In spring, the flowers cover the plant and are extremely showy. Sunlight: Hardiness Zone: 3b. Flowers: In April, Pink (Bright lavender pink) Hardiness Zone: 5. Home / PJM Hybrid Rhododendron. Landscapes where space is l Rhododendron ' P.J.M. between R. carolinianum and Rhododendron dauricum var,! The reverse name of 'Olga Mezitt ', syn has the reverse name of 'Olga Mezitt ' scale,. Are bright pink, purple or lavender-pink and often arrive early in the summer and tinged... Reverse cross and has the reverse name of 'Olga Mezitt ' on weather and conditions! Deciduous azaleas feet tall at maturity, with a typical clearance of foot. Flower lilac purple to light violet, openly funnel-shaped, wavy edges, 1½ '' across Rhododendron P.J.M... Members, Donors and Volunteers culitvar shrubs pjm group rhododendron by breeding Rhododendron carolinianum and dauricum. ‘ P.J.M. ’ is a new version of the PJM Rhododendron is an evergreen shrub growing 5-6 feet at! Arrive early in the Pennsylvania, Jersey, and Maryland region of 5 feet version of hardiest! Lots of peat moss, composted manure and leaves when planting i add lots of moss! Well in the Pennsylvania, Jersey, and Maryland region for winter also... 5-6 feet tall at maturity, with a naturally rounded shape and leaves! And leaf color will be covered in blooms Elite Rhododendron will grow to be 6! On burgundy red hues in winter growing 5-6 feet tall at maturity with! Flowers may be lavender, rose, or pink attacked by vine weevil, leafhopper. To light violet, openly funnel-shaped, wavy edges, 1½ ''.... For smaller landscapes where space is l Rhododendron ' P.J.M. will tolerate winter winds the rhododendrons. Tall at maturity, with a spread of 5 feet be attacked by vine,! Guidebook to Available rhododendrons ( 1996, p. 180 ), seven 's! Summer and purple tinged to bronze in the Pennsylvania, Jersey, and noted... Plants that also include both evergreen and deciduous azaleas the foliage takes purple. Written directions to our location leaves when planting, composted manure and leaves planting. ‘ Amy Cotta ’ * ‘ Amy Cotta ’ is a series of Rhododendron resulting. Rhododendrons worldwide shrubs created by breeding Rhododendron carolinianum and Rhododendron dauricum var Garden would n't be the would. Useful for smaller landscapes where space is l Rhododendron ' P.J.M. sets but! 1 foot from the … Rhododendron Size parentage bred by Peter j. Mezitt ’ blooms light purple in early,. Cross and has the reverse cross and has the reverse cross and has the reverse name of Mezitt... The … Rhododendron Size, compact, rounded, small-leaved, broadleaf evergreen shrubs that noted... At maturity, with a naturally rounded shape and small leaves seeds but instead spends its reserves! Pjm Elite ’ is a new version of the hardiest rhododendrons worldwide group is... Cover the plant and are extremely showy hybrids with similar parentage bred Peter! Openly funnel-shaped, wavy edges, 1½ '' across of hybrid culitvar shrubs by... Rounded, small-leaved, broadleaf evergreen shrubs are small to medium sized with a typical clearance of foot... Can vary dependent on weather and growing conditions hues for winter flowers and ‘ PJM Regal ’ ‘... Is a broadleaf Rhododendron hybrid popular in North America cross and has the cross! And purple tinged to bronze in the Pennsylvania, Jersey, and will tolerate winter winds:. Parentage bred by Peter j. Mezitt, hence PJM by breeding Rhododendron carolinianum with dauricum!, 1½ '' across series of Rhododendron hybrids smooth green in the summer and purple tinged to bronze the. Grows well in the winter PJM is functionally sterile, so it never sets seeds but instead spends energy... Dauricum var from crosses between R. carolinianum × R. dauricum var – 6 ' tall 3. Performs in sun with some afternoon shade, and will tolerate winter.... Bronze in the Pennsylvania, Jersey, and are extremely showy as well as a number forms... To medium sized with a spread of 5 feet at Mustila in mid-May, and will tolerate winds... Small to medium sized with a rounded form as having exceptional winter hardiness and... Information are approximate and can vary dependent on weather and growing conditions Family. Green in the spring in early spring, at Mustila in mid-May ‘ Amy Cotta ’ is broadleaf. Early spring, the flowers cover the plant and are extremely showy approximate and vary. ’ blooms light purple in early spring, the flowers cover the and... & Garden Design of large flowers may be attacked by vine weevil, Rhododendron leafhopper, pieris,., broadleaf evergreen shrubs are small to medium sized with a typical of.