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          Symphyotrichum oblongifolium (Aromatic aster)
          Bloodworth, Stefan

          Symphyotrichum oblongifolium

          Symphyotrichum oblongifolium (Nutt.) G.L. Nesom

          Aromatic Aster, Aromatic American Aster, Fall Aster, Wild Blue Aster, Shale Aster

          Asteraceae (Aster Family)

          Synonym(s): Aster kumleinii, Aster oblongifolius, Aster oblongifolius var. angustatus, Aster oblongifolius var. orientis, Aster oblongifolius var. rigidulus, Lasallea oblongifolia, Virgulus oblongifolius

          USDA Symbol: SYOB

          USDA Native Status: L48 (N)

          This perennialís rigid stems, usually less than 20 in. tall, are much-branched from the base. The narrow leaves and stems are sparsely covered with short hairs. Pink or lavender-blue flowers are many-petaled and aromatic with a yellow center.


          From the Image Gallery

          38 photo(s) available in the Image Gallery

          Plant Characteristics

          Duration: Perennial
          Habit: Herb
          Size Notes: 1-2 feet.
          Size Class: 1-3 ft.

          Bloom Information

          Bloom Color: Purple , Violet
          Bloom Time: Sep , Oct , Nov


          USA: AL , AR , CO , DC , IA , IL , IN , KS , KY , MD , MN , MO , MS , MT , NC , ND , NE , NM , OH , OK , PA , SD , TN , TX , VA , WI , WV , WY
          Native Distribution: PA to NC, w. to n.e. WY & TX, s. to Tamaulipas in northeastern Mexico
          Native Habitat: Frequent in calcareous prairies of Edwards Plateau and lower plains Country. Well-drained sand, loam, clay, caliche, limestone.

          Growing Conditions

          Water Use: Low
          Light Requirement: Sun , Part Shade
          Soil Moisture: Dry , Moist
          Cold Tolerant: yes
          Heat Tolerant: yes
          Soil Description: Rocky, calcareous or sandy soils. Well drained.
          Conditions Comments: Fall aster creates dazzling purple mounds in the fall season. It slowly colonizes by stolons, so thin regularly to control it. The plant may open up if it gets to top heavy so it is a good idea to keep it thick by pruning it back by no more than half in June. After it goes dormant, wait to cut back to the basal rosette in late fall, early winter.


          Conspicuous Flowers: yes
          Nectar Source: yes

          Value to Beneficial Insects

          Special Value to Native Bees
          Supports Conservation Biological Control

          This information was provided by the Pollinator Program at The Xerces Society for Invertebrate Conservation.


          Propagation Material: Seeds
          Description: Sow seeds, 5/8 deep, outside in fall or provide cold stratification. Also propagated by softwood cuttings taken in late spring.
          Seed Collection: Not Available
          Seed Treatment: Not Available
          Commercially Avail: yes

          Mr. Smarty Plants says

          Native flowers for Door County, Wisconsin
          September 02, 2009
          We recently were required to put in a new septic system on our vacation property in Door County, WI. This left us with a clearing on our wooded lot where the septic field is now located. The installer...
          view the full question and answer

          From the National Organizations Directory

          According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

          Lady Bird Johnson Wildflower Center - Austin, TX
          Delaware Nature Society - Hockessin, DE
          NPSOT - Native Plant Society of Texas - Fredericksburg, TX
          Longwood Gardens - Kennett Square, PA
          NPSOT - Austin Chapter - Austin, TX
          NPSOT - Williamson County Chapter - Georgetown, TX
          Mt. Cuba Center - Hockessin, DE


          Bibref 1620 - Gardening with Native Plants of the South (Reprint Edition) (2009) Wasowski, S. with A. Wasowski
          Bibref 946 - Gardening with Prairie Plants: How to Create Beautiful Native Landscapes (2002) Wasowski, Sally
          Bibref 318 - Native Texas Plants: Landscaping Region by Region (2002) Wasowski, S. & A. Wasowski
          Bibref 1294 - The Midwestern Native Garden: Native Alternatives to Nonnative Flowers and Plants An Illustrated Guide (2011) Adelman, Charlotte and Schwartz, Bernard L.

          Search More Titles in Bibliography

          From the Archive

          Wildflower Newsletter 1987 VOL. 4, NO.3 - Fall Planting Highlights the Season, Jubilee Celebration Commences December 1987...

          Additional resources

          USDA: Find Symphyotrichum oblongifolium in USDA Plants
          FNA: Find Symphyotrichum oblongifolium in the Flora of North America (if available)
          Google: Search Google for Symphyotrichum oblongifolium


          Record Modified: 2013-09-12
          Research By: TWC Staff

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