Shockwave Garden Phlox

Phlox paniculata 'Shockwave'

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Shockwave Garden Phlox (Phlox paniculata 'Shockwave') at Weston Nurseries

Shockwave Garden Phlox flowers

Shockwave Garden Phlox flowers

(Photo courtesy of NetPS Plant Finder)

Shockwave Garden Phlox (Phlox paniculata 'Shockwave') at Weston Nurseries

Shockwave Garden Phlox

Shockwave Garden Phlox

(Photo courtesy of NetPS Plant Finder)

Plant Height:  12 inches

Flower Height:  18 inches

Spacing:  10 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  3a

Other Names:  Summer Phlox


This one could be grown for the shocking variegated foliage alone; summer blooms of fragrant lavender flowers with a white flush in the center; suitable for containers or small perennial borders; good mildew resistance

Ornamental Features

Shockwave Garden Phlox features bold fragrant conical lavender star-shaped flowers with white streaks at the ends of the stems from mid to late summer. The flowers are excellent for cutting. Its narrow leaves remain dark green in color with showy gold variegation throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Shockwave Garden 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

Shockwave Garden Phlox is recommended for the following landscape applications;

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

Planting & Growing

Shockwave Garden Phlox will grow to be about 12 inches tall at maturity extending to 18 inches tall with the flowers, with a spread of 12 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 10 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 is a selection of a native North American species. It can be propagated by division; however, as a cultivated variety, be aware that it may be subject to certain restrictions or prohibitions on propagation.

Shockwave Garden Phlox is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It is often used as a 'filler' in the 'spiller-thriller-filler' container combination, providing a mass of flowers against which the larger thriller plants stand out. Note that when growing plants in outdoor containers and baskets, they may require more frequent waterings than they would in the yard or garden.

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