How should we manage this? Foliage: Winter, purple Bloom: Spring, April. It has green foliage. It takes it’s name because it grows well in the Pennsylvania, Jersey, and Maryland region. The PJM Rhododendron is called "the most adaptable and easiest rhododendron to grow" by the University of Connecticut Horticulture Department. We see no disease or insect problem.First, remove all mulch from the base of the plant. One potential Rhododendron problem is that the leaves are turning yellow. If their location near a wall is hot and gets a lot of reflected light and hear, azaleas are not going to do well there. Cooperative Extension, which staffs local offices in all 100 counties and with the Eastern Band of Cherokee Indians. ... You might want to take a look at the planting section and the problems section. It should be kept back a few inches at least and be about 2-3" deep. P.J.M. After the hole is completed put the plant in the hole and back-fill it with a mixture of peat, soil and other amendments. The problems usually occur when there is snow on the ground, especially when the ground is frozen solid. When you planted, Maryland was suffering from highly abnormal rainfall. I used one of those inexpensive pH testers to see what my soil was like. They have been watered by an irrigation system and fertilized yearly with HollyTone for acid plants. Hundreds of bright purple flowers explode on a compact, neat shrub in early spring. You could dig up one of the plants to see whether its roots are moving out of the planting soil or are just sitting there in the same shape as they were in their planting container. Epsom Salts* According to the American Rhododendron Society , if the plant has older leaves that have turned yellow between green veins, you likely have a Magnesium deficiency. PJM Rhododendron ‘Amy Cotta’ * ‘Amy Cotta’ is a new version of the PJM Rhododendron that has lavender pink flowers. The leaves are 3 inches long, smooth green in the summer and purple tinged to bronze in the winter. A healthy plant in the right place with proper maintenance should have few problems. Each slightly fragrant bloom features inconspicuous golden green blotches that age to reddish-brown. Solving Rhododendron Problems: Yardener.com. In mid to late spring, it bears abundant rounded clusters of 10 to 15, trumpet-shaped, vibrant reddish-purple flowers. Rhododendrons can get root rot if they don’t have well-drained soil; putting one of these shrubs in a wet spot in the garden is always a mistake. One major cause of chlorosis is a deficiency of either iron or manganese When planting, it's good to tease out the roots to ensure they grow outwards and don't just keep going in circles because either the roots were already doing that in the pot or the planting hole soil was dense and prevented root penetration. Insect problems include aphids, borers, lacebugs, leafhoppers, mealybugs, mites, nematodes, scale, thrips and whitefly. The term chlorosis gets its name from the lack of chlorophyll, the pigment responsible for healthy plants' green color. Some varieties are too tender for harsh winters, too tender for very hot weather, too sensitive to … Be sure the plants were not planted too deeply (that slowly kills them.) Azaleas are forest understory/semi-shade plants. Rhododendron With Yellowing Leaves. Leaves are the best indicators of plant problems. Water stress can occur under both extremes of flooded, overly-saturated soils or under drought conditions when too little water is present. The … Borers are wormlike, 1/2-inch long yellowish-white larvae of moths. PJM is functionally sterile, so it never sets seeds but instead spends its energy reserves producing flowers. Rhododendron and usually elliptic, leathery and dark green. https://extension.umd.edu/hgic/topics/trees-shrubs. Cooperative Extension prohibits discrimination and harassment on the basis of race, color, national origin, age, sex (including pregnancy), disability, religion, sexual orientation, gender identity, and veteran status. Elliptic, hairless, leathery, dark green leaves (to 2.5” long); foliage acquires purple tones in winter. rhododendrons are a group of hybrid culitvar shrubs created by breeding Rhododendron carolinianum with R. dauricum var. )-Leaf Burn. N.C. Azaleas can regrow after a lot of pruning. A healthy plant in the right place with proper maintenance should have few problems. Branches Wilted; Holes In Stems Are Caused by Borers. Jeffery Hardy 99,449 views. Question by Mufasa345919 August 19, 2002. The leaves are 1" by 2 1/2" on the P.J.M. Members of the genus Rhododendron support the following specialized bee: Andrena (Andrena) cornelli. Rhododendrons and azaleas are acid loving plants meaning that the soil needs to be slightly acidic to optimize growing conditions. Rhododendron 'PJM Elite Star' // Outstanding improved PJM - Duration: 0:48. Rhododendrons include over 800 species of plants in the Ericaceae family. Determining the underlying problem is necessary to restore the rhododendron's health. Purple and red color, no matter what the conditions maintained, insects diseases... Larvae of moths opportunistic this way that need good drainage to perform well period as! That suddenly looks as if it is dying like wet feet the foliage of elliptic, leathery, dark leaves... 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