Q.Hi so I have a creeping Phlox I’ve had it for 10 years and it’s looking a little brown in some spots I think this is normal
Winter dieback but I just wanna make sure nothing is wrong and it’ll be green again in the spring I live in Randolph New Jersey
Your plants look pretty normal for winter.
Cut out any old, woody stems that no longer produce flowers during the later winter pruning, removing these stems at their base. These stems typically form near the center, or older part of the phlox. Summer growth replaces the old stems with tender new stems that will flower.
https://www.gardeningknowhow.com/ornamental/groundcover/creeping-phlox/creeping-phlox-planting.htm