However, the leaves of azaleas are more pointed and smaller. But now I'm seeing new growth on it. Water well and be sure to spread a layer of mulch around, but not touching, the base of your Rhodo. Azaleas come in a variety of sizes and may grow low to the ground or soar as tall as 25 feet. Each species of rhododendron requires specific care. In general the profile of rhododendron plants is regular. A good rule of thumb is that if you have purchased a rhododendron from a nursery or garden center, choose a pot … Direct sunlight after the morning hours may burn the leaves of the plant, so ensure it is getting mostly shade in the afternoon. In severe winter conditions, wrap evergreen rhododendrons with burlap and during fall, apply extra mulch around the base of the plant. Then remove cross branches and weak wood. Luckily, its not too late for preventative rhododendron winter care. Drought could have been a major factor in your Rhododendrons brown leaves. It bloomed the most beautiful blossoms and was growing like crazy. Soil acidity is measured by the pH scale. You need to do this before the plant starts to suffer as root problems caused by poor drainage can be fatal. Country Living's expert answers your questions about gardening. If the soil is already soaking wet, refrain from adding more moisture at this point. Winter proofing your screened porch utilizes the space during the cold season. The buds need light to encourage them to open. Determining the underlying problem is necessary to restore the rhododendron’s health. The aim of most pruning is to keep plants healthy and improve flowering, by removing older, less productive wood. Spray your rhododendron with 2 tablespoons of Epsom salts in 1 gallon of water if it is suffering from a lack of magnesium. This happens when it gets cold during winter as the plant tries to conserve water in the cold spell. Rhododendrons are spectacular garden shrubs grown for their clusters of Spring blooming, bell-shaped flowers and attractive evergreen foliage. Rhododendrons have shallow roots and are susceptible to freeze damage if the plant heaves out of the ground during a freeze-thaw-freeze cycle in … turn brown as if scorched. Mulch plant every spring with 2 to 5 inches of pine bark chips to protect the shallow roots and retain moisture. Get involved. Ensure pruning tools are properly sterilized before and after this procedure. Look For Unhealthy Leaves; 3. 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. 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. Not much can be done to control this and the plant eventually dries up and dies. The plant needs little maintenance and its benefits make it worth saving. Rhododendrons thrive in loamy, well-drained soil. Use a fertilizer for acid loving plants, such as organic cottonseed meal. In general, the lowest temperature during the past five years is a good guide for making selections based on hardiness. This is normally caused by a type of fungus that gets under the bark. A gardener's heart sinks to see the leaves of a beautiful azalea (Rhododendron spp.) They are more of an indoor problem to a potted plant than an outdoor but they cause death when the plant is young. This is caused by a fungal infection known as Bud Blast. Check your soil drainage for fast water runoff and make soil amendments to correct this. Rhododendron refers to a genus of over 1,000 species of deciduous or evergreen flowering plants known as rhododendrons and azaleas. The damage looks like winter drought damage. If the soil particles are compact or too heavy, the plant will not grow to maturity and will die. Discover rhododendrons. Rhododendrons are a genus of woody plants popularly known for their attractive flowers. Wait until you see where the new growth is coming from. This typically happens to potted plants because the water can't drain away from the roots. When the last of the pine tree was removed, I discovered that the damage was surprisingly slight, except for a beautiful Rhododendron ‘Roseum Elegans’, now a 2-foot mound of broken branches and torn foliage. It is mandatory to procure user consent prior to running these cookies on your website. Think about thinning the shade or moving the plant if it is suffering. If the chainsaw in your garage is calling your name, resist. Because rhododendrons root much more shallowly than other plants, it’s extra important to keep a thick layer of mulch over this delicate system. How to Save an Overwatered Plant. What colours, moods or atmospheres? Here’s how to help: Whenever the temperature gets above freezing, give your rhododendron a slow and steady trickle of water until the soil feels damp 8-10 inches down. Control measures involve pruning out the infected areas. This may damage them if done without moderation. Pruning properly to prevent die-back. Telling that your plant is about to dry off might give you a chance to troubleshoot, identify, and remedy any problems that are making the rhododendron start drying. Use what is recommended but no more, as excess fertilizer can cause further stress and damage to the plant. Rhododendron is suffering from lack of water: often due to competition from tree roots. To see if this disease is the problem, you'll need to do a little digging. The top of the root ball should be even with the soil line. Reduce the usage of nitrogen fertilizer as too many results in the buds not to bloom. The dead branch should be cut off as soon as possible to prevent the whole plant from dying. Remove dead flowers from rhododendrons to promote vegetative growth rather than seed production. Fertilize the rhododendron moderately as the heavy application will burn the plant. But opting out of some of these cookies may have an effect on your browsing experience. C hecking through my emails, I came across a link sent by a friend to one of the winter talks in the program offered by the Botanical Society of Scotland - specifically “The Scottish Uplands: how to revive a degraded landscape” by Dr Helen Armstrong. That eyesore of a rhododendron deserves better -- even if it's tall, lanky and just plain ugly. If you look at the stem just above the ground and you notice it has been eaten up, vine weevils are usually the cause. The Royal Horticultural Society is the UK’s leading gardening charity. During Summer, it is … Rhododendrons are fibrous, shallow rooted plants that need good drainage to perform well. 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