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Q.Phlox Not Flowering Much In Upstate New York???

Zone 14513 | Phloxy added on May 18, 2020 | Answered

Large mounds….years old…added Bloom Booster early spring….still very few blossoms…did cold weather hurt them?

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Certified GKH Gardening Expert
Answered on May 19, 2020

You are in hardiness zone 6 so the cold winter should not have affected it. (generally hardy to zone 3)

Shaving the mound to remove some of the older, woody growth should help with the flowering (you can mow it on high setting after flowering). Also, there are two types of low growing phlox, p. subulata and p. stolonifera, and the subulata type requires full sun to perform well. The other blooms in part shade or sun.

Repeated bouts of powdery mildew can weaken the plants and reduce flowering. Full sun and good air circulation decreases the chance for such fungal diseases.



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