tall garden phlox

Question

First – do you deadhead the flowers? Second – next spring when they come up, can I cut the tops off to make them branch out. Mine are one flower on one stalk. Thank you.

Answer 1

You can go ahead and cut them back anytime after flowering has stopped. Deadheading them may even promote additional flowering. Here is more information: https://www.gardeningknowhow.com/ornamental/flowers/fgen/deadheading-flowers.htm
https://www.gardeningknowhow.com/ornamental/flowers/phlox/growing-garden-phlox.htm