Q.ninebark diabolo
Why it has never flowered & how can I make it flower
Downtoearthdigs
Answered on June 9, 2019
My best guess would be that the soil pH is off. They will need a pH that is only very slightly acidic. More than likely the soil will be too alkaline, and will have to be corrected. This article will give you more information on the care of these: https://www.gardeningknowhow.com/ornamental/shrubs/ninebark/growing-ninebark-shrubs.htm
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