Unlike its creeping sister, the Moss phlox, Phlox paniculata is an upright, 0.6-1 m (2-4 ft) tall, colorful perennial.
Its abundant flowers come in compact clusters of white, pink, purple or bi-color, scented flowers.
Many cultivars have a darker eye in the flower center.
They are very ornamental in borders and flower beds.
Garden phlox is an easy to grow, drought-resistant perennial and does well on a sunny exposure. Plants planted in the shade and those heavily fertilized are more exposed to diseases.
Powdery mildew is a well-known fungus on many ornamental plants like on roses, zinnias, begonias, lilacs and on Phlox, as well.Though many cultivars have a higher resistance to the powdery mildew fungus, some elementary measures should be taken to prevent this nuisance:
Powdery mildew prevention:
- Allow air circulation throughout the foliage by properly spacing plants, when planted.
- Choose an area with adequate sunlight for the plant.
- Apply fungicides at the first signs of fungus.
- Remove diseased leaves and affected plant tissue in fall to prevent survival of the fungus over the winter.