Walton's Plant Library
 
perennial

Aromatic Aster

Symphyotrichum oblongifolium

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Aromatic Aster (Symphyotrichum oblongifolium) at Walton's Garden Center

Aromatic Aster flowers

Aromatic Aster flowers

(Photo courtesy of NetPS Plant Finder)

Height:  30 inches

Spread:  3 feet

Sunlight:  full sun  partial shade 

Hardiness Zone:  3a

Other Names:  syn. Aster oblongifolius

Description:

A mounded, bushy variety, perfect for adding color to fall gardens; beautiful lavender daisy-like flowers with gold centers are featured on green, fragrant foliage; easy to grow, requiring little to no maintenance; drought tolerant once established

Ornamental Features

Aromatic Aster has masses of beautiful lavender daisy flowers with gold eyes at the ends of the stems from early to late fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its small pointy leaves remain dark green in color throughout the season.

Landscape Attributes

Aromatic Aster is a dense herbaceous perennial with a mounded form. 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 is a good choice for attracting bees and butterflies to your yard, but is not particularly attractive to deer who tend to leave it alone in favor of tastier treats. Gardeners should be aware of the following characteristic(s) that may warrant special consideration;

  • Disease

Aromatic Aster is recommended for the following landscape applications;

  • Mass Planting
  • General Garden Use
  • Container Planting

Planting & Growing

Aromatic Aster will grow to be about 30 inches tall at maturity, with a spread of 3 feet. Its foliage tends to remain dense right to the ground, not requiring facer plants in front. It grows at a medium rate, and under ideal conditions can be expected to live for approximately 10 years. As an herbaceous perennial, this plant will usually die back to the crown each winter, and will regrow from the base each spring. Be careful not to disturb the crown in late winter when it may not be readily seen!

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 may require supplemental watering during periods of drought or extended heat. It is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This species is native to parts of North America. It can be propagated by division.

Aromatic Aster is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. It can be used either as 'filler' or as a 'thriller' in the 'spiller-thriller-filler' container combination, depending on the height and form of the other plants used in the container planting. It is even sizeable enough that it can be grown alone in a suitable container. 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
Characteristics
Massing  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features