Phlox
Q.

cutting back phlox

Anonymous added on October 26, 2016 | Answered

I have a long area of established phlox that hang over a wall. They are getting thin and stringy and I think they need to be trimmed. Wen do I cut back phlox in MD and how short should I cut them?

A.
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Downtoearthdigs
Certified GKH Gardening Expert
Answered on October 28, 2016

You can cut your Phlox back any time now through early Winter.
Just give them a hard prune by cutting them back to about 3 to 4 inches in height.
They will grow back in the spring.

https://www.gardeningknowhow.com/ornamental/flowers/phlox/growing-garden-phlox.htm

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