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PlantFiles: Aromatic Aster, Fall Aster
Symphyotrichum oblongifolium

Family: Asteraceae (ass-ter-AY-see-ee) (Info)
Genus: Symphyotrichum (sim-fy-oh-TRY-kum) (Info)
Species: oblongifolium (ob-long-ee-FOH-lee-um) (Info)

Synonym:Aster oblongifolius

6 vendors have this plant for sale.

20 members have or want this plant for trade.


18-24 in. (45-60 cm)

24-36 in. (60-90 cm)

USDA Zone 4a: to -34.4 C (-30 F)
USDA Zone 4b: to -31.6 C (-25 F)
USDA Zone 5a: to -28.8 C (-20 F)
USDA Zone 5b: to -26.1 C (-15 F)
USDA Zone 6a: to -23.3 C (-10 F)
USDA Zone 6b: to -20.5 C (-5 F)
USDA Zone 7a: to -17.7 C (0 F)
USDA Zone 7b: to -14.9 C (5 F)
USDA Zone 8a: to -12.2 C (10 F)
USDA Zone 8b: to -9.4 C (15 F)
USDA Zone 9a: to -6.6 C (20 F)
USDA Zone 9b: to -3.8 C (25 F)

Sun Exposure:
Full Sun


Bloom Color:
Light Blue

Bloom Time:
Late Summer/Early Fall
Mid Fall


Other details:
This plant is attractive to bees, butterflies and/or birds
Drought-tolerant; suitable for xeriscaping
Average Water Needs; Water regularly; do not overwater
This plant is resistant to deer

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:

Propagation Methods:
By dividing the rootball
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
From seed; sow indoors before last frost

Seed Collecting:
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored

Click thumbnail
to view:

By frostweed
Thumbnail #1 of Symphyotrichum oblongifolium by frostweed

By frostweed
Thumbnail #2 of Symphyotrichum oblongifolium by frostweed

By frostweed
Thumbnail #3 of Symphyotrichum oblongifolium by frostweed

By arroyophyte
Thumbnail #4 of Symphyotrichum oblongifolium by arroyophyte

By AnniesAnnuals
Thumbnail #5 of Symphyotrichum oblongifolium by AnniesAnnuals

By frostweed
Thumbnail #6 of Symphyotrichum oblongifolium by frostweed

By frostweed
Thumbnail #7 of Symphyotrichum oblongifolium by frostweed

There are a total of 16 photos.
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4 positives
No neutrals
No negatives

Gardeners' Notes:

Positive coriaceous On Jun 19, 2014, coriaceous from ROSLINDALE, MA wrote:

Bushy, very showy, and very late to bloom here, not till October. When it blooms, it covers itself in flowers. The flower display continues well after first frost.

The name "aromatic aster" comes from the fragrance the foliage gives off when handled.

This species tends to sprawl---we use a large peony hoop positioned in spring but additional support is needed. Reaches 3' tall here. Clumps increase quickly, but not invasively.

Positive KanapahaLEW On Sep 17, 2012, KanapahaLEW from Alachua, FL (Zone 8b) wrote:

A dependable performer in z8b, although this year was the first time I've had any problems at all (due to rain every day for some weeks, the tips developed a slimy white fungus which cleared up when the weather got drier). It gets to around 3' to 3 1/2' tall and is bushy but requires some support to look its best. I'm using wire cages this year. It spreads slowly by runners which can be dug in spring and transplanted to other areas. It grows well in very dry/xeric ground.

Positive dmj1218 On May 2, 2006, dmj1218 from west Houston, TX (Zone 9a) wrote:

A favorite fall bloomer for me. Tough, nearly indestructable plant that usually blooms late October in Houston area. This plant is native to most of the United States from Texas north to Montana, east to New York, south along the eastern seaboard states and includes Mississippi, Alabama, and Arkansas. A United States native that makes a great ornamental garden plant for most gardens.

Positive frostweed On Oct 1, 2004, frostweed from Josephine, Arlington, TX (Zone 8a) wrote:

Fall Aster is a wonderful Texas Native plant, that will make passerby look twice because of the beautiful mass of purple. You have to wait a long time for the blooms but it is certainly worth the wait. It is also very easy to grow and propagate by cuttings. It does best in full sun.


This plant has been said to grow in the following regions:

Gainesville, Florida
Roslindale, Massachusetts
Wellfleet, Massachusetts
Nashville, Michigan
Belton, Missouri
Elmwood, Nebraska
Frenchtown, New Jersey
Raleigh, North Carolina
Kennett Square, Pennsylvania
Whitehall, Pennsylvania
Nashville, Tennessee
Arlington, Texas
Austin, Texas (2 reports)
Collinsville, Texas
Copperas Cove, Texas
Crawford, Texas
Dallas, Texas
Fort Worth, Texas (2 reports)
Fredericksburg, Texas
Houston, Texas
Lampasas, Texas
Lewisville, Texas
Mesquite, Texas
New Caney, Texas
Tyler, Texas
Universal City, Texas
Victoria, Texas
Wells, Texas
Appleton, Wisconsin

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