Water the hydrangeas early in the morning or later in the afternoon when the sun is not as intense. Water the soil underneath the plant rather than watering from above. The main cause of leaf burn is water droplets on the leaves that magnify the direct sunlight causing burns on the leaves.Click to see full answer. Accordingly, how do you bring a hydrangea back to life?If hydrangea blooms start to prematurely wilt you can totally submerge them in a “bath” of water for about 45 minutes. Then recut and place the stems into boiling water and then back into a vase of fresh water. They should revive in a couple of hours and live another day or two.Similarly, how do you treat anthracnose on hydrangeas? Anthracnose can be fatal to hydrangeas, so prune out dead or diseased plant parts and destroy them. To keep fungal spores from spreading, also remove mulch from the affected area. Use a fungicide designed for anthracnose, and follow label directions carefully. Also to know, what causes hydrangea leaves to curl and turn brown? If the margins of the leaves fade from green to grey and then turn brown, the plants were dry for too long. If the petals of the flowers turn brown at the tip, not enough water was applied. Too much sun exposure can cause your hydrangea shrubs to burn on its leaves and blooms.Should I cut off Brown hydrangea leaves?Although some afternoon sunlight promotes blooms, too much sunlight, when coupled with wet leaves, can cause fungal spots. Hydrangeas generally prefer dappled shade. Prune off and destroy damaged or diseased leaves, and clear up any dropped flowers and plant debris from under the shrub.
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