Plant Database
perennial

Frost Aster

Symphyotrichum 'Frost'

 

 
Frost Aster (Symphyotrichum 'Frost') at GardenWorks

Frost Aster flowers

Frost Aster flowers

(Photo courtesy of NetPS Plant Finder)

Height:  3 feet

Spread:  24 inches

Sunlight:  full sun  partial shade 

Hardiness Zone:  4a

Other Names:  Fall Aster

Description:

Compact, mounding habit; profusion of bright white flowers with gold centers, and attractive lance-like green leaves; prefers cool, moist soil; water the root zone instead of from the top to reduce fungal disease; water regularly to encourgage more blooms

Ornamental Features

Frost Aster has masses of beautiful white daisy flowers with gold eyes at the ends of the stems from early to mid fall, which are most effective when planted in groupings. The flowers are excellent for cutting. Its narrow leaves remain dark green in colour throughout the season.

Landscape Attributes

Frost 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 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

Frost Aster is recommended for the following landscape applications;

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

Planting & Growing

Frost Aster will grow to be about 3 feet tall at maturity, with a spread of 24 inches. 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 is not particular as to soil type or pH. It is somewhat tolerant of urban pollution. This particular variety is an interspecific hybrid. 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.

Frost Aster is a fine choice for the garden, but it is also a good selection for planting in outdoor pots and containers. Because of its height, it is often used 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. 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  Edging  Garden  Container 
Applications
Flowers  Attracts Wildlife 
Ornamental Features


Disclaimer - This resource is provided for informational purposes only and does NOT reflect current availability. Inventory varies seasonally, so we cannot guarantee that every plant will be in stock at all times - please contact your favourite GardenWorks location directly for current availability. It does not include our entire inventory of plants, so be sure to visit GardenWorks to see varieties that may not be represented on this list.