Wait until fall frost kills tall phlox before pruning to the ground; fall pruning is keeps powdery mildew at bay. Regular deadheading and light trimming encourage bushier growth, extend blooming, and ...
When you think of phlox, you might picture the 5-foot-tall garden phlox (Phlox paniculata) that graces many a cottage garden. But the genus phlox contains a wide variety of species — some that need ...
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