Peter J. Mezitt was born in 1885, into a family of Latvian farmers. Blooms early (too early??) PJM Elite is a rugged Accent that lets homeowners in the northern states enjoy the pleasures of Rhododendron-growing. Write Your Own Review. These hybrids are compact, rounded, small-leaved, evergreen shrubs that generally grow to 3-6â tall and are noted for having exceptional winter hardiness. adroll_currency = "USD"; In mid to late spring, it bears abundant rounded clusters of 10 to 15, trumpet-shaped, vibrant reddish-purple flowers. PJM should not be planted in wet areas as root rot can be an issue, but also should not be allowed to dry out. Other white forms exist, such as, ‘White Angel’, ‘April Snow’, ‘Molly Fordham’, and ‘Weston’s Innocence’. Evergreen Rhododendrons are some of the most beautiful plants you can buy, but many of them are too tender to grow in our coldest regions. Do not site plants within or near the drip line of trees in the walnut family (most rhododendrons/azaleas are sensitive to toxic juglones produced by roots of walnuts, butternuts, pecans and hickories). That’s Ed at the nursery in the picture at the top. Mites may also appear. Should be sited in areas protected from strong winter winds. Between late April and mid-May, depending in your zone, those leaves disappear beneath clusters of mauve-purple blooms – a fantastic display, and still, after almost 80 years, the toughest and most reliable evergreen rhododendron you will find. Its relatively coarse texture can be used â¦ sempervirens. 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. 4.7/5 These hybrids resulted from crosses between Rhododendron carolinianum and Rhododendron dauricum var. The small leafed varieties have a greater tolerance to the winter sun and are more winter hardy than large leafed varieties. One is ‘PJM Compact’, while ‘Checkmate’ is the smallest of all. Most rhododendrons need strongly acid soils, with a pH value below 6.0. This plant is also one of the most sun-tolerant rhodys and one that is nicely scaled to smaller yards and gardens. The PJM Pink Delight Rhododendron is the most cold-resistant of all evergreen rhododendrons, and highly-recommended for gardens in zones 4 and 5. Rhododendron is a genus of 500 to 900 species and includes both of what we commonly call rhododendrons and azaleas. Flower lilac purple to light violet, openly funnel-shaped, wavy edges, 1½â across. They usually branch from a central trunk unlike the evergreen and deciduous azalea that are multi-stemmed from the ground. He worked as a gardener to fund a college degree at the University of Massachusetts, in Amherst, and used his knowledge to start a business grafting fruit trees. Ball-shaped truss holds 5-12 flowers. Most are evergreen but some are deciduous. PJM Group is a series of rhododendron hybrids that resulted from crosses between R. carolinianum and R. dauricum var. Rhododendrons Curl Their Leaves Against Winter Wind If a lot of cold wind blows past your rhododendron in the winter, it will curl its leaves inward so less leaf surface is exposed; the plantâs trying to keep water from evaporating out of its leaves. Plant in a location protected from strong winds. Much hybridization has resulted in a great number of hybrid cultivars. adroll_pix_id = "T5DEBSDHVFG4FA3KSLHHKJ"; In the hands of other growers, those seedlings became more new forms, including some smaller, more compact varieties. Water deeply, regularly in the first growing season to establish an extensive root system. This hardiness rating is a guide not an absolute! Snap them off – don’t cut – just above the first leaf. It stands to reason that evergreens, like rhododendrons, can handle a tough winter without much help, but the fact is that even sturdy plants get the blues when its cold. PJM Elite is one remarkable exception. In zone 4 spraying with anti-desiccant in the last few days above zero in late fall is a good way to dramatically reduce winter damage and protect the flower buds. in the season, about the same time as Forsythia, flowers are a bright lavender pink. Tom Ahern, who grows hundreds of rhododendrons near the top of South Mountain in Fountain Hill, Pa., each winter surrounds his prize plants with about 400 feet of â¦ They are grown for their showy spring flowers and in the case of evergreen types for their attractive winter foliage. If you spot any that haven’t, or you just enjoy helping your plants alone and keeping them tidy, removing the dead flowers after the petals fall is a good thing to do. Light dappled shade beneath deciduous trees is ideal, but it should be light, and protection from the morning sun in winter is a good defense against the leaves burning. PJM rhododendron are best grown in an acidic, moist, well-drained soil in part to full shade. Not this one. I add lots of peat moss, composted manure and leaves when planting. True rhododendrons have 10 stamens in a flower and azaleas have only 5. Poor drainage inevitably leads to root rot, therefore raised beds/plantings should be considered in heavy clay soils such as those present in much of the St. Louis area. This is best accomplished by wrapping the plant in burlap, or enclosing it in a burlap tent. Disease pests include blights, canker, crown rot, leaf gall, root rot, leaf spot, rust and powdery mildew. Also effective in foundation plantings or as a hedge. The leaves turn dark purple in the winter. The leaves are 3 inches long, smooth green in the summer and purple tinged to bronze in the winter. Foliage acquires purple tones in winter. Woodland margins. Dappled shade is preferred; full sun may result in leaf scorch. Other colors were developed too, such as ‘PJM Lavender’ and ‘PJM White Form’. In 1911 he had saved enough for a passage to America, where he met Olga, and married her. Perfect for cold-season color....and it's the first Rhododendron to flower in the spring. The foliage releases an appealing scent when handled, sweet and spicy. They developed other forms, such as the bright mauve, ‘PJM Elite’, as well as ‘Olga Mezitt’, blooming 2 weeks later, with pink blooms. Within a few years they had cleared 10 acres, and by the early 1940s they had expanded to 200 acres of full-scale nursery production. Name: Rhododendron âP.J.M.â. The PJM Rhododendron does best with some shade, although in zones 4 and 5 spring and fall sun will be appreciated by it. â¦ It was Rhododendron dauricum var. Consider in your landscape plans what key views will look like through a window in winter. These hybrids are compact, rounded, small-leaved, evergreen shrubs that generally grow to 3-6â tall and are noted for having exceptional winter hardiness. Morning sun with afternoon shade is also acceptable. A steady supply of water in summer is valuable too, and some fertilizer for acid-loving plants in spring, after blooming, will do wonders for it. I know, you have tried several times, and nursed plants with scorched leaves and dead buds back to life, in the hope that they would repeat that lovely display they had when you bought them. The foliage turns an incredible purple and russet colors heading into winter. All rights reserved The Tree Center 2020. thetreecenter.com I am writing this as the days shorten, in late fall, with winter round the corner. Rhododendrons are shrubs with showy flowers in spring, usually in shade of white, pink, purple and red. adroll_current_page = "other"; They originate mostly from the Northern Hemisphere with high concentrations in western China, the Himalayas and Myanmar (Burma). In 1945 it was released, and it made Weston Nurseries famous. Chlorosis (leaves turn yellow) often indicates an iron deficiency in the soil that is often caused when the soil pH becomes too high. The Mighty Rhododendron 1 /9 The genus Rhododendron encompasses both rhododendrons and azaleas, but unlike most azaleas, most rhododendrons have â¦ Refrain from pruning in the fall or winter as this will remove the buds for the following spring bloom, diminishing or â¦ sempervirens, and are noted as having exceptional winter hardiness. It can be frustrating, and perhaps you are ready to give up? The foliage of elliptic, glossy, dark green leaves turns reddish-purple in fall and winter. Mass, group or specimen. Colors range from white to pink, red, and purple. ***If you want to check the availability of any of the plants mentioned here, go to our Home Page, click on the ‘Search’ button in the upper right, and type in your choice – both common names and botanical ones will work. Another reason that rhododendrons die is from cold winter temperatures. Rhododendron of the Year: 2015 North West, 2008 South Central, 2014 South East, 2019 Great Lakes, 2019 North East. Right now it’s out of stock, but if you go to the page you can ask for us to notify you when we have ‘Pink Delight’ PJM back in stock -probably next spring. Rhododendrons and azaleas are susceptible to many insect and disease problems. When it bloomed the flowers were bright pink, not lavender, but otherwise the plant was identical, and just as hardy. In shadier situations, the plant may eventually lose some lower leaves simply due to lack of light, this would be a normal occurrence during the adjustment process. Although in the relative warmth of zone 6, New England winters can still be hard, and he also wanted to bring something new to gardeners in colder zones. The shrub has an upright, mounding habit and compact form. Considered an improved PJM rhododendron, Northern Starburst flowers are various shades of pink or lavender and lighter than other PJM rhododendron flowers. adroll_adv_id = "RK545AVNKVEJFFRYPAE7DC"; Tolerates a fair amount of sun in cool northern summers, but leaves may scorch in hot afternoon sun in the St. Louis area. Elliptic, hairless, leathery, dark green leaves (to 2.5â long). Gets through the winter sun and are more likely to mutate, and chose! Facing slopes available for sale of forms Burma ) with showy flowers in pjm rhododendron winter. 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