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United States / Grow / smooth blue aster

smooth blue aster (Symphyotrichum (f. Aster) laeve)
Photo: no rights reserved (CC0), via iNaturalist. Species-typical, not necessarily this cultivar.

smooth blue aster

Symphyotrichum (f. Aster) laeve (accepted: Symphyotrichum laeve) · Asteraceae · all Symphyotrichum records · also called Smooth aster · Wikipedia

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Is this one for your yard?

Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.

Smooth aster is anchored by the CSU ignition-resistant plant fact sheet. That compact citation identifies the selected source lineage for this record and the displayed species entry.

The record is on-list in the evidence table, and the accepted source pack remains limited evidence. The cited row keeps the source identity and evidence-depth statement distinct at the record level.

The related plants section gives readers a comparison path beyond this record. Its neighboring entries do not inherit smooth aster's selected fact sheet, listing conclusion, or limited source depth recorded for smooth aster itself.

Form
perennial
Water need
moderate
Rated in
Colorado / Rocky Mountain Front Range
On this lot

1. Fire evidence and conditions

Fire evidence
Fire-resistant — location does not change the cited classification.
Placement evidence
1 source placement record; source schemes remain separate.
Evidence regions
Colorado / Rocky Mountain Front Range
Typed publication scope: 1 scope across 1 cited fire source
  • Ignition-Resistant Landscape Plants (Fact Sheet 6.305) · Official scoped edition
    • CO; partial normalized coverage · 2025-07-01

      Colorado State University Extension and the Colorado State Forest Service publish Fact Sheet 6.305 for Colorado's WUI and varied ecosystems. FireApproved exposes all 114 exact source owners at Colorado publication scope while retaining score, elevation, water, and Idaho-carrier lineage. Publication scope is not suitability for every Colorado site or zone.

2. Why this plant is relevant here

State distribution
Documented in AL, AR, AZ, CA, CO, CT, DC, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY.
Native range
The legacy compatibility field lists CO in native range; its field-level source was not retained.

3. Legal, ecological, and broader status

How to read this page

The status above is computed from the cited rows below: independent recommendations can support a fire-resistant result, an avoid row can produce keep-away, and disagreement stays visible as conflict. Placement notes preserve each source’s own scheme rather than translating unlike rules into one scale. This is evidence about a plant, not permission to plant it in every part of the defensible space; Zone 0 remains noncombustible.

Where its sources say to plant it

Placement rules below use each source's own distances or named zones, tied to its rating. They are not interchangeable with the directory's current Zone 0 guidance.

The evidence

Grouped by what each source concluded. Primary evidence rated the plant itself (a lab, field program, or original curation); corroboration compiled or republished another source's rating and resolves to its root lineage.

Recommends (1)

Same genus in the directory · the Symphyotrichum group page

Last verified 2026-08-23. JSON (CC BY 4.0)

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Symphyotrichum (f. Aster) laeve (Smooth aster). FireApproved. https://fireapproved.com/plants/symphyotrichum-f-aster-laeve/. Last verified 2026-08-23.