Is it thirsty? Correct drooping leaves by spraying foliage with water in the early evening. If the air temperature tops 95 degrees... Low Humidity. Any ideas gratefully received! Direct sunlight after the morning hours may burn the leaves of the plant, so ensure it is getting mostly shade in the afternoon. What Should I Do With My Drought-Damaged Rhododendron? At first it had lots of new growth and nice yellow flowers. 1. Water immediately! If you see vole activity or damage to the rhododendron, consider traps or poisons to control the voles. If you try to pull up the roots, the stem may break. ANSWER: Curled and droopy rhododendron leaves aren’t sick. Her writing has a strong focus on home improvement, gardening, parenting, pets and travel. Rhododendron plants in both field and container production are at risk for this disease. Clemson University Extension: Azalea & Rhodendron Diseases, Rhodyman.net: Culture: How to Grow Rhododendrons and Azaleas, American Rhododendron Society: Insect and Disease Control, Cornell University Cooperative Extension: Diagnosing Rhododendron Problems, Clemson University Cooperative Extension: Azalea & Rhododendron Insect Pests. These shrubs prefer climates with adequate rainfall and moist summers. Drooping foliage on a rhododendron is common in extreme heat. CAUSE: Whiteflies are small, moth-like insects that cluster on the undersides of leaves. What Are the Treatments for Volutella Twig Blight on Boxwood? If the shrub continues to droop during the early morning hours, water the rhododendron thoroughly. She writes for numerous online publications. Nonetheless, you should check the soil moisture about 6″ to 1′ below the surface with a … To control two-banded Japanese weevils, use Orthene. Make sure to carefully follow the instructions listed on the insecticide label. We bought a large Rhododendron 2 years ago. Indeed, as temperatures drop, the leaves of these evergreen shrubs frequently droop and curl up like green cigars. Some, such as Unique, do not respond as dramatically as others, including Crest. Hi Foggers and welcome . The leaves are just trying to conserve water in the cold, dry air. Plan the perfect garden with our interactive tool →, Image by Flickr.com, courtesy of mozzercork, Image by Flickr.com, courtesy of Pete Birkinshaw, Image by Flickr.com, courtesy of Margaret Anne Clarke, Image by Flickr.com, courtesy of off to London for a while) (Kathleen Conklin, Image by Flickr.com, courtesy of Hans-Peter, Image by Flickr.com, courtesy of Sharon Mollerus, American Rhododendron Society: Rhododendron Care, University of Missouri: Growing Azaleas And Rhododendrons, Ohio State University: Growing Rhododendrons. It never bloomed in that location or grew, so this spring I moved it to the front yard where it is partly sunny. Now the leaves are turning a rust color, curling upward, and falling off. If the vole chews all the way around the trunk, the plant will die. All of a sudden it became wilted looking, the leaves rounded out and it looked ill. We had some major rains, and it seemed to perk up some. ... Other signs include retarded growth and drooping foliage. What is causing this. I have a rhododendron. 1 Response. Drooping leaves that curl inward is a symptom of rhododendron dieback caused by the fungus... Phytophthora Root Rot. The soil should never be soggy wet, but it should be moist to the touch. Also purchase a foliar spray to control the adult weevils. Follow the directions on the label for application. On plant Rhododendron. It never bloomed in that location or grew, so this spring I moved it to the front yard where it is partly sunny. Crown rot causes the lower portions of the stem to … Best offers for your Garden - https://amzn.to/2InnD0w ----- I Have Curled Leaves on My Rhododendron. 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