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When is the best time to prune rhododendrons?

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Quick Answer

The best time to prune rhododendrons is immediately after the plants have bloomed, which is usually in June or July, according to About.com. Gardeners should remove weak branches from plants that have become overly thin and should prune tall limbs that climb from the top of the rhododendron.

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Full Answer

Putting off pruning until well after the blooming phase can hinder the growth of new buds the next year, according to About.com. Failure to prune the plants can cause the development of disease. When rhododendrons are pruned, they also should be fertilized with a product that supports the acidic soil the bushes require.

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