Most large-leafed varieties require dappled shade; avoid deep shade or full sun. These hybrids are compact, rounded, small-leaved, evergreen shrubs that generally grow to 3-6â tall and are noted for having exceptional winter hardiness. Other Resources: Acronym Finder has 7 verified definitions for PJM. Find tactics for healthy livestock and sound forages. Featured trees, vines, shrubs and flowers. In Greer's Guidebook to Available Rhododendrons (1996, p. ⦠was a Latvian who immigrated to the Boston area and opened a nursery in 1923. Link/Page Citation Category Filters; All definitions (7) Information Technology (0) Military & Government (1) Science & Medicine (2) Organizations, Schools, etc. hard hit. Also, how do you care for a PJM rhododendron? Licensing for forestry and wildlife professionals. It's considered a "dependable bloomer" because you get consistent color, no matter what the conditions! Rhododendron (PJM Group) is a series of rhododendron hybrids resulting from crosses between Rhododendron carolinianum and Rhododendron dauricum var. List of 56 PJM definitions. sempervirens. They can be planted by themselves but are also attractive when planted in groups. What does rhododendron mean? office for plants suitable for your region. Plants are shallow-rooted and benefits with a layer of organic mulch to conserve moisture and moderate soil temperature fluctuations. hybrids, PJM is more forgiving and has considerable drought and freeze tolerance. PJM stands for Peter J. Mezitt, who, along with his father, developed the rhododendron hybrids that carry those initials. Explore our research locations around the state. Distinctively aromatic green foliage changes with the onset of autumnâs colder weather to an intense, lustrous dark mahogany, becoming verdant again as it drops its flowers in spring. P.J.M. Luckily, its not too late for preventative rhododendron winter care. Providing unbiased information to enable educated votes on critical issues. Liquid or water-soluble fertilizer is mixed with water and then poured into the soil. This rhododendron owes its existence to the political upheaval that plagued Europe of Rhododendron carolinianum, the native rhodie species that ranges down the Appalachians from Virginia to northern Where do donations to Big Brothers Big Sisters go? PJM, a hardy hybrid involving Rhododendron carolinianum, named after P.J. What does PJM stand for?. PJM Interconnection, a regional transmission organization (RTO) in the eastern United States that operates one of the world's largest competitive wholesale electricity markets. azaleas. Research-based connection to government and policy issues. in my garden, usually blooming in early April and about two weeks before the first The The Easter freeze of 2007 was a traumatic event in my garden with the azaleas especially To achieve a tree-like shape for your rhododendron, identify which branch should be the main trunk, so you will know which to keep. Private, Commercial & Non-commercial training and education. season for my shade garden. How much does it cost to play a round of golf at Augusta National? most of the eastern states. Guiding entrepreneurs from concept to profit. If you are concerned about cost, granular fertilizer is ⦠Acronyms used often in the electric industry are summarized with their full names . in the border country between Mongolia, Russia, China and Kazakhstan. If you are concerned about cost, granular fertilizer is the best fertilizer for rhododendrons since it is the cheapest. Some critics have described the bloom color as a "dirty, In 1939, Peterâs son Edmund, had just graduated from college and was working in the The 'P.J.M.' Rhododendron-Facts . Maintenance calendar, and best practices. Increase your knowledge of public issues & get involved. the best clones of these seedlings and began propagating them vegetatively. I add lots of peat moss, composted manure and leaves when planting. The shrub has an upright, mounding habit and compact form. They first bloomed in the spring of 1945 and on the spot, the son named them for his seem to scorn in gardens. used by PJM, the following pages list a compilation of current definitions and acronyms. sempervirens, so expect some differences in flower and leaf color. While The University of Arkansas Division of Agriculture does not maintain lists of retail Pjm Group is a must information and translations of rhododendron in the cool the. 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