), The Secret Science of Solving Crossword Puzzles, Racist Phrases to Remove From Your Mental Lexicon. rhododendron to prevent winter and summer injury. Avoid boggy, You should get new growth in other areas of the plant in the spring. Watering in the summer when temperatures are high December 1, 2014. scorched, or browned and crisp) are not necessarily diseased. What is Causing Rhododendron Leaves to Brown and Curl? Waterlogged roots suffocate and shut down, leaving no avenue to replace water lost to drying winds and sunlight. Fact Check: What Power Does the President Really Have Over State Governors? Your rhododendron leaves are turning brown because they may be suffering from scorched leaves. stress probably will not recover. stress burns. Phytophthora, the formal name for rhododendron rot, breeds in very wet soil and often occurs in locations that are naturally wet or in areas of poor drainage. Rhododendrons should be watered regularly and thoroughly so that each plant's entire root zone is mois… This kind of damage is most likely due to unfavorable environmental and weather conditions. The rhododendron is an amazingly beautiful flowering plant to grow in the garden. particularly hot, dry conditions including summer droughts. The two primary reasons that rhododendron leaves turn brown are cold weather and rhododendron wilt. marshy areas. triggered by excessive water. and repair damaged plants. Can you help me with my rhododendron? The former is a naturally occurring phenomenon that takes place as the result of changing weather patterns and doesn't necessarily indicate a dead plant. Sign up for our newsletter. Water This spring’s bloom was the best in a long time. Leaves Discovering the cause will make treatment options much more effective, and employing basic preventive practices will enable you to avoid the problems in the future. It seems to be happening in sections of the plant. Joseph OBrien, USDA Forest Service, Bugwood.org, Growing Rhododendron: Caring For Rhododendrons In The Garden, Zone 5 Rhododendrons – Tips On Planting Rhododendrons In Zone 5, Bacterial Leaf Scorch Disease: What Is Bacterial Leaf Scorch, Prickly Kale Leaves – Does Kale Have Thorns, Corn Husk Wreath Ideas: How To Make A Corn Husk Wreath, DIY Air Plant Wreaths: Wreath Making With Air Plants, Professional Tree Removal – When To Call Tree Cutting Professionals, Honeysuckle Azalea Care: Tips For Growing Honeysuckle Azaleas, Azaleas Are Turning Brown: What Causes Brown Azalea Blossoms, Companions For Azaleas And Rhododendrons: What To Plant With Rhododendron Bushes, Thanksgiving Tradition: Turning Homegrown Pumpkins Into Pie, Growing Thanksgiving Dinner – Must Have Turkey Side Dishes, Interesting Uses For Pecans: What To Do With Pecans, The Bountiful Garden: Bringing The Garden To Thanksgiving. summer. The former is a naturally occurring phenomenon that takes place as the result of changing weather patterns and doesn't necessarily indicate a dead plant. I wanted to know what is the problem and how I could fix it. There are some things you can do to prevent curled, crispy rhododendron leaves that curled up over the winter are protecting themselves and will likely open This kind of You can also choose a more protected location for planting Watch for recovery and if leaves don’t bounce back or There is no way to rid a plant of phytophthora. It’s also possible that stress burns and scorch are The stresses triggered by unfavorable weather can cause: Scorch can be caused by dryness in winter. damage is most likely due to unfavorable environmental and weather conditions. If decreasing temperatures aren't the culprit, attention should be turned toward the plant soil. The Sign up to get all the latest gardening tips!