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Carex barrattii
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Mt. Cuba Center evaluates native plants and related cultivars for horticultural and ecological value.

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Mt Cuba Center
Back to trial Phlox for Sun

Trial Garden

Phlox paniculata ‘Delilah’

6 Photos


Phlox paniculata ‘Delilah’ performed well during the first year of the trial. It even garnered a powdery mildew resistance rating of “excellent” that year. Unfortunately, the second and third years were much worse, receiving a powdery mildew resistance rating of “very poor”. The floral display was also greatly reduced during the second and third years, probably as a result of poor plant health. Perhaps with greater horticultural care (supplemental watering) this cultivar would have performed better.



  • Rating
  • Common Name
    Delilah garden phlox  
  • Bloom Period
    early July—late July 
  • Peak Bloom
    late July 
  • Size
    24” x 24” 
  • Fragrance
  • Powdery Mildew Resistance