Making Bushes Bloom

I’ve got an oakleaf hydrangea and a smoke bush which both grow huge and healthy looking each summer, but neither has flowered for over 10 years (they were planted 11 years ago). I prune them back in late fall. What can I do to get them to bloom?

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1 Comment To "Making Bushes Bloom"

#1 Comment By Nikki On 07/14/2011 @ 10:15 am

I would suspect that they have too little phosphorus, especially if they are planted near a lawn area that gets regularly fertilized. This article will explain more: https://www.gardeningknowhow.com/garden-how-to/soil-fertilizers/phosphorus-plant-growth.htm ^[1]

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