Cosmopolitan Garden Phlox
Phlox paniculata 'Cosmopolitan'
Cosmopolitan Garden Phlox flowers
(Photo courtesy of NetPS Plant Finder)
Height: 16 inches
Spacing: 16 inches
Hardiness Zone: 3a
Other Names: Summer Phlox
Group/Class: Cocktail Series
Elegant summer blooms of fragrant deep pink flowers with red centres, on compact plants suitable for containers or small perennial borders; good mildew resistance
Cosmopolitan Garden Phlox features bold fragrant conical pink star-shaped flowers with red eyes at the ends of the stems from mid to late summer. The flowers are excellent for cutting. Its narrow leaves remain emerald green in colour throughout the season. The fruit is not ornamentally significant.
Cosmopolitan 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;
Cosmopolitan Garden Phlox is recommended for the following landscape applications;
- Mass Planting
- Border Edging
- General Garden Use
- Container Planting
Planting & Growing
Cosmopolitan Garden Phlox will grow to be about 14 inches tall at maturity, with a spread of 20 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 16 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.
Cosmopolitan 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.