Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Aster is on-list in this record's evidence. The same umbrella carries limited evidence, a measure of support rather than a second source position. The evidence table identifies the cited unit as a genus-rank umbrella record.
The next reading of the underlying rows keeps those facts at genus scope. The genus picker separates the individual species records for decisions that need narrower evidence. This structure preserves the umbrella's on-list result without projecting it onto an aster whose own page may present a different source pack. The evidence-depth label stays equally visible.
Form
perennial
Rated in
OR/WA/ID; Pacific Northwest (Oregon / Washington / Idaho)
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
The October 2023 joint Pacific Northwest Extension publication explicitly names Oregon, Washington, and Idaho and publishes more than 150 plant profiles. FireApproved has normalized 155 exact plant records from the source; publication scope does not assert that every listed plant suits every site within the three states.
2. Why this plant is relevant here
State distribution
Documented in ID, OR, WA.
Native range
Introduced / established
USDA hardiness
Documented range 3–8.
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
Broader regional context
Federal context
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.
Plant hardiness evidence
These values describe the plant source. Your ZIP zone comes from the separate 2023 USDA
Plant Hardiness Zone Map. Whole-zone values stay whole-zone, and a single unresolved value
is not treated as a tolerance range. Different source boundaries stay separate: overlapping
statements are compared independently, while only ranges with no shared zone are called a conflict.
3–8 explicit range · whole zone precision · source stated
Source taxon: Symphyotrichum spp. · exact match.
Source location: Aster profile, USDA hardiness zones field.
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.
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.
