Why Can’t I Get My Rhododendrons to Bloom?

Why can’t I get my rhododendrons to bloom? In sunny spots, approximately 3 yr old plants.

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2 Comments To "Why Can’t I Get My Rhododendrons to Bloom?"

#1 Comment By Nikki On 09/05/2012 @ 7:56 am

It’s likely the soil. If soil has too much nitrogen, it will encourage more foliage growth as opposed to flowering, which needs more phosphorus. Use a “bloom booster” fertilizer or add some bone meal to the soil to help add some phosphorus.

#2 Comment By Cheyenne On 09/07/2012 @ 7:47 am

I have two types of rhododendrons in my yard. Two have the small leaves and one has a larger leaf. About twice a year I give them a treatment of used tea leaves. My neighbour gives hers used coffee grounds. The two small rhododendrons bloom faithfully every year. The large one every second year. I just spread the tea leaves around the base of the plant. This is also good for holly bushes.

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