Plant, Tree & Shrub Library

Sentimental Blue Platycodon

Platycodon grandiflorus 'Sentimental Blue'

Add To My Wish List

print page
Sentimental Blue Platycodon (Platycodon grandiflorus 'Sentimental Blue') at Bachman's Landscaping

Sentimental Blue Platycodon flowers

Sentimental Blue Platycodon flowers

(Photo courtesy of NetPS Plant Finder)

Sentimental Blue Platycodon (Platycodon grandiflorus 'Sentimental Blue') at Bachman's Landscaping

Sentimental Blue Platycodon in bloom

Sentimental Blue Platycodon in bloom

(Photo courtesy of NetPS Plant Finder)

Height:  8 inches

Spacing:  6 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  3


A sturdy dwarf variety with abundant balloon-shaped buds opening to a rich violet blue flower with darker viens; great for massing along the border

Ornamental Features

Sentimental Blue Platycodon has masses of beautiful spikes of blue bell-shaped flowers rising above the foliage from early to late summer, which emerge from distinctive violet flower buds, and which are most effective when planted in groupings. The flowers are excellent for cutting. Its narrow leaves remain dark green in color throughout the season. The fruit is not ornamentally significant.

Landscape Attributes

Sentimental Blue Platycodon is an herbaceous perennial with an upright spreading habit of growth. Its relatively fine texture sets it apart from other garden plants with less refined foliage.

This is a relatively low maintenance plant, and is best cleaned up in early spring before it resumes active growth for the season. It has no significant negative characteristics.

Sentimental Blue Platycodon is recommended for the following landscape applications;

  • Mass Planting
  • Rock/Alpine Gardens
  • Border Edging
  • General Garden Use
  • Container Planting

Planting & Growing

Sentimental Blue Platycodon will grow to be about 8 inches tall at maturity, with a spread of 8 inches. When grown in masses or used as a bedding plant, individual plants should be spaced approximately 6 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 prefers to grow in average to moist conditions, and shouldn't be allowed to dry out. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This is a selected variety of a species not originally from North America.

Sentimental Blue Platycodon 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. 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 experts for more information on how to protect it over the winter months.

Hardiness Zone Plant Height Minimum Sunlight
Massing  Rock  Edging  Garden  Container 
Ornamental Features