Phlox

Why Doesn’t My Tall Garden Phlox Flower?


mmassar added on July 19, 2012 | Answered

I have had tall garden phlox for 4 years and it grows very tall but has never flowered. There doesn't appear to be any powdery mildew and the plant is healthy. It gets about 6 hours of sun daily. Why doesn't it flower?


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ANSWERS
Nikki
Certified GKH Gardening Expert
Answered on July 20, 2012

I would guess that the nitrogen to phosphorus ratio is off. The soil may have an abundance of nitrogen, which would result in nice, healthy green growth but little to no blooms. Without the right amount of phosphorus, it will not bloom well. Bone meal is a great way to add phosphorus.

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