My phlox flowers are not as spectacular this year, why?

Hello! I started several types of phlox in my garden many years ago. Every year, they’ve been growing tall and were very beautiful . But this year they are not as spectacular for some reason. Is it possible that they are too old and need to be replanted?

I have divided them many times and they are in various places in my garden. Actually, some are doing ok, but still not as spectacular as before. 

What is your opinion? Thanks

Supporter Asked on August 20, 2016 in Flowers,   Gardening,   Problems with plants.
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  • 1 Answer(s)

    Make sure your phlox getting enough sunlight, and the soil is moist. Phlox needs 4 to 6 hours of direct sunlight at minimum, and it do not do well in hot dry soils.

    Do you fertilize your phlox?  Applying Miracle-Gro one time per month should be ample. If your phlox does not bloom next year, you may want to rip it out and begin anew.

    Professor Answered on August 20, 2016.
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