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Prairie Phlox

Phlox pilosa

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Prairie Phlox (Phlox pilosa) at The Mustard Seed

Prairie Phlox flowers

Prairie Phlox flowers

(Photo courtesy of NetPS Plant Finder)

Plant Height:  18 inches

Flower Height:  24 inches

Spacing:  20 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Other Names:  Downy Phlox

Description:

Pretty summer blooms of fragrant lavender-pink flowers; naturally compact plants suitable for containers or small perennial borders; good mildew resistance

Ornamental Features

Prairie Phlox features bold fragrant conical lavender star-shaped flowers with pink overtones and hot pink eyes at the ends of the stems from mid spring to mid summer. The flowers are excellent for cutting. Its tomentose narrow leaves remain emerald green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Prairie Phlox is a dense herbaceous perennial with an upright spreading habit of growth. Its medium texture blends into the garden, but can always be balanced by a couple of finer or coarser plants for an effective composition.

This plant will require occasional maintenance and upkeep, and should be cut back in late fall in preparation for winter. It is a good choice for attracting butterflies and hummingbirds to your yard. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Disease

Prairie Phlox is recommended for the following landscape applications;

  • Mass Planting
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Prairie Phlox will grow to be about 18 inches tall at maturity extending to 24 inches tall with the flowers, with a spread of 24 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 20 inches apart. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years.

This plant does best in full sun to partial shade. It does best in average to evenly moist conditions, but will not tolerate standing water. It is not particular as to soil type or pH. It is highly tolerant of urban pollution and will even thrive in inner city environments. This species is native to parts of North America. It can be propagated by division.

Prairie Phlox is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. With its upright habit of growth, it is best suited for use as a 'thriller' in the 'spiller-thriller-filler' container combination; plant it near the center of the pot, surrounded by smaller plants and those that spill over the edges. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden. Be aware that in our climate, most plants cannot be expected to survive the winter if left in containers outdoors, and this plant is no exception. Contact our store for more information on how to protect it over the winter months.

 
 
Hardiness Zone Plant Height Minimum Sunlight
Characteristics
Massing  Edging  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features