Answer: The normal shape of amost azaleas is "twiggy" or a sort of light and airy tiered shape. Shade also encourages the legginess. To make them grow denser, you will need to go in and selectively trim out the lanky bits cutting just above a branch and also tip back the new growth once or twice during the early summer. Also avoid overfertilizing -- these plants are not heavy feeders. If the plants you purchased were very dense it is because they are sheared regularly at the grower's.
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