![]() Check the soil where your plants reside to make sure it is appropriately acidic and well-draining. Azaleas love acid and will always grow and bloom best in ericaceous soil. ![]() Harsh winter wind can damage the bushes as well.Īlkaline Soil. A common late winter/early spring injury to Azalea bushes happens when the shrubs are exposed to a hard freeze overnight and then morning sun. You can prevent this second type of dehydration by watering once a week in the fall and keeping plenty of mulch over the roots.įreeze or Wind. This can occur because the plant has not been watered enough or because the ground is frozen and the roots cannot properly take up water. Light that is too harsh may cause brown flowers.ĭehydration. Azaleas grow best on the edge of woods where sunlight is dappled. That means that if you see brown petals on your flowers, the cause is not necessarily petal blight. Keep reading to learn how to deal with petal blight and keep your Azalea shrubs happy.Īzalea flowers may turn brown for many reasons. This article will describe the details of this disease, plus how to identify and treat it. ![]() It does not attack the foliage, and it does not attack the buds when they are tightly closed. Interestingly, petal blight only affects Azalea flowers. With previously infected plants, treat the soil and buds with fungicide in the spring before flowers open. It spreads easily but can be controlled by picking off the affected petals and applying clean mulch. Petal blight is a fungal disease that turns Azalea’s flower petals brown and slimy. So what should you do? How can you treat petal blight in Azaleas? If your Azalea bushes had brown flowers last year, or you start to see brown spots on the leaves now, you may have a case of petal blight. When your landscape is full of Azaleas, with their abundant spring flowers and colorful fall foliage, you know how disappointing it can be when your flower’s petals become unhealthy.
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