Pollinator plant

Sky Blue Aster

Aster azureus

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Common names

7 names · 4 languages
EnglishYour language
+1 more nameShow fewer names
Other languages (3)
Dutch
  • Hemelaster
French
Slovak
  • astra olentangyjská[4]
Sources & name notes (4)

Names recorded in our plant catalogue and botanical sources, grouped by language. Usage can vary by region.

Catalogue language labels are reviewed separately from botanical source records.

Numbered references identify names recorded by an external source. Other names are from our plant catalogue.

[1] Symphyotrichum oolentangiense — Plant Toolbox common names ↗

NC State Extension Gardener Plant Toolbox; English common names in a United States horticultural reference.

Source records
  • Skyblue Aster — ul#common_names > li:nth-of-type(3); heading: Common Name(s):; Symphyotrichum oolentangiense.
  • Azure Aster — ul#common_names > li:nth-of-type(1); heading: Common Name(s):; Symphyotrichum oolentangiense.
  • Sky Blue Aster — ul#common_names > li:nth-of-type(2); heading: Common Name(s):; Symphyotrichum oolentangiense.
[2] Catalogue of Life 2026-08-20 — Symphyotrichum oolentangiense ↗

Common names from World Plants, version 26.05, reproduced in Catalogue of Life 2026-08-20. License: CC BY.

Source records
  • Skyblue aster — VernacularName.tsv, line 144451; taxon 53Q8P.
  • Azure aster — VernacularName.tsv, line 144450; taxon 53Q8P.
[3] Symphyotrichum oolentangiense — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy. This is a common-name attestation, not an independent botanical determination.

Source records
  • azure aster — results[0].names[2]; taxon id 130371; Symphyotrichum oolentangiense.
  • sky blue aster — results[0].names[1]; taxon id 130371; Symphyotrichum oolentangiense.
  • sky-blue aster — results[0].names[3]; taxon id 130371; Symphyotrichum oolentangiense.
  • Aster azuré — results[0].names[6]; taxon id 130371; Symphyotrichum oolentangiense.
[4] Symphyotrichum oolentangiense — iNaturalist taxon names ↗

Community-curated iNaturalist taxonomy; common-name attestation, not an independent botanical determination.

Source records
  • azure aster — results[4].names[2]; taxon id 130371; Symphyotrichum oolentangiense.
  • sky blue aster — results[4].names[1]; taxon id 130371; Symphyotrichum oolentangiense.
  • sky-blue aster — results[4].names[3]; taxon id 130371; Symphyotrichum oolentangiense.
  • Aster azuré — results[4].names[6]; taxon id 130371; Symphyotrichum oolentangiense.
  • astra olentangyjská — results[4].names[7]; taxon id 130371; Symphyotrichum oolentangiense.
Plant references

Source-backed information

Published observations for this plant. Each reference supports the information beside it.

Taxonomy
Catalogue of Life treats Aster azureus as a synonym of Symphyotrichum oolentangiense.

Taxonomic treatment in the August 2026 release; the catalogue record name is preserved.

Sources [1] [2]
Botanical family
Asteraceae

Family in the cited taxonomic treatment.

Sources [2]
Mature height
0.61–0.61 m

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [3]
Mature spread
0.46–0.61 m

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life. Converted from the source range in feet and inches; mature size varies with growing conditions.

Sources [3]
Plant habit
Clumping; Erect

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Life cycle
Perennial

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Growth rate
Medium

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Foliage
Deciduous

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Light
Dappled Sunlight (Shade through upper canopy all day); Full sun (6 or more hours of direct sunlight a day); Partial Shade (Direct sunlight only part of the day, 2-6 hours)

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Moisture and drainage
Good Drainage; Occasionally Dry

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Soil texture
Loam (Silt); Sand; Shallow Rocky

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life.

Sources [3]
Soil pH
Acid (<6.0); Alkaline (>8.0); Neutral (6.0-8.0)

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life. These source categories do not certify the catalogue’s numeric pH interval.

Sources [3]
Flowering season
Autumn; Summer

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life. Seasons reflect the source region and do not verify the catalogue’s exact flowering months.

Sources [3]
Reported wildlife attraction
Listed as attracting: bees, butterflies.

NC State Extension profile, published as Symphyotrichum oolentangiense; accepted-name linkage follows Catalogue of Life. Broad wildlife categories; this does not establish flower visits by a named bee species or quantify nectar and pollen.

Sources [3]
Native range
SE. Canada to NE. Mexico.

Explicit native locality records in Kew WCVP v16; introduced and doubtful distributions excluded. Continent conversion follows the documented geographic mapping.

Sources [4]
Catalogue ratings

Who this plant supports

Honey bees

Low suitability
Nectar value Low
Pollen value Low
Plant profile

About this plant

Skyblue aster (Aster azureus) is a herbaceous plant. It flowers from July to October.

Sources and references

References for the information marked with source numbers on this page.

Sources checked
  1. Catalogue of Life Aster azureus — Catalogue of Life COL26.8

    COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.

    Supports: Taxonomy
    Relevant sections
    • Taxonomy: NameUsage.tsv line 1800515; ID 5W6NM; rank species; status synonym

    Source checked on .

    Source data licence: CC BY 4.0.

  2. Catalogue of Life Symphyotrichum oolentangiense — Catalogue of Life COL26.8

    COL26.8 (2026-08-20). Contributing checklist: Synonymic Checklists of the Vascular Plants of the World. This is taxonomic evidence, not an independent ecological study.

    Supports: TaxonomyBotanical family
    Relevant sections
    • Taxonomy: NameUsage.tsv line 1316156; ID 53Q8P; rank species; status accepted
    • Botanical family: NameUsage.tsv line 1316156; ID 53Q8P; rank species; status accepted

    Source checked on .

    Source data licence: CC BY 4.0.

  3. NC State Extension Symphyotrichum oolentangiense — Plant Toolbox

    NC State Extension Gardener Plant Toolbox. Growing conditions and seasons reflect its United States horticultural context.

    Supports: Mature heightMature spreadPlant habitLife cycleGrowth rateFoliageLightMoisture and drainageSoil textureSoil pHFlowering seasonReported wildlife attraction
    Relevant sections
    • Mature height: Dimensions / Height
    • Mature spread: Dimensions / Width
    • Plant habit: Habit/Form
    • Life cycle: Life Cycle
    • Growth rate: Growth Rate
    • Foliage: Woody Plant Leaf Characteristics
    • Light: Light
    • Moisture and drainage: Soil Drainage
    • Soil texture: Soil Texture
    • Soil pH: Soil pH
    • Flowering season: Flower Bloom Time
    • Reported wildlife attraction: Attracts

    Source checked on .

  4. Royal Botanic Gardens, Kew Symphyotrichum oolentangiense — Kew WCVP native distribution

    Native distribution and taxonomic treatment from the official WCVP v16 export (4 June 2026). The link opens the corresponding POWO taxon. Source rows are retained in the native-range audit archive.

    Supports: Native range
    Relevant sections
    • Native range: WCVP v16; wcvp_names.csv lines 508376, 510613; wcvp_distribution.csv native locality lines 1665112, 1665113, 1665114, 1665115, 1665116, 1665117, 1665118, 1665119, 1665120, 1665121, 1665122, 1665123, 1665124, 1665125, 1665126, 1665127, 1665128, 1665129, 1665130, 1665131, 1665132, 1665133, 1665134, 1665135, 1665136

    Source checked on .

    Source data licence: CC BY 3.0.