By Hastings14
United Kingdom 
when should I split phlox?
31 Aug, 2012
Answers
Let the plant die down naturally and then split in the autumn or next spring.
31 Aug, 2012
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If you mean Phlox paniculata? I cut them down in the autumn, tidy around them and mulch to protect them and divide in the early spring.
31 Aug, 2012