Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Shasta daisy is consistently listed as fire resistant, although FireSmart BC says the plant needs more research.
Six sources reach the same practical verdict. The extension services of Oregon State, Washington State, and the University of Idaho list it as fire resistant, as do Montana State and Michigan State. Utah State calls it firewise when properly placed and maintained. The University of Nevada includes it because at least two western sources rated it favorably, while FireSmart BC approves it but adds the research caution.
This agreement is broad geographically, stretching from the Pacific Northwest and British Columbia through the Great Basin and Northern Rockies to the Great Lakes. Still, these are curated or compiled planting recommendations, not scores on one shared flammability scale. “Fire resistant” does not mean fireproof; it means the plant is repeatedly recommended as a better landscape choice under the standards used by those institutions.
Shasta daisy is a perennial in the aster family, suited to USDA zones 4a through 9b. Its fire rating is reassuring, but placement and upkeep still matter under Utah State’s guidance. Also check local planting rules: the species has been flagged as invasive in two jurisdictions, a separate concern from its favorable fire rating.
Form
perennial
Rated in
British Columbia; Michigan / Great Lakes; Montana / Northern Rockies; Nevada / Great Basin +5
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Michigan State University Extension Bulletin E2948 is explicitly a list of wildfire-resistant landscape plants for Michigan and includes a Michigan-native field. FireApproved publishes 221 exact GBIF owners from 226 represented source rows and holds 15 complex or non-exact rows. This dated publication scope is not a current site-suitability determination.
The April 2022 MontGuide explicitly presents fire-resistant species adapted to Montana. FireApproved publishes 92 exact plant records from the source while retaining excluded genus, family, and unresolved rows; the guide itself says not every listed species grows in every part of the state.
Willamette Valley (OR footprint); partial normalized coverage · 2015-02-01
OSU Extension says EM 9103 highlights fire-resistant plants that thrive under Willamette Valley growing conditions. FireApproved publishes 172 exact owners only as valley context. The guide shares the PNW 590 lineage and is not a second independent vote or statewide site clearance.
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.
University of Nevada Cooperative Extension compiled plants suited to Nevada climate zones and reported favorably by at least two upstream firewise lists. FireApproved publishes 126 exact source owners at Nevada publication scope. The source explicitly makes no independent flammability determination, so these rows remain corroborative.
Utah State University Extension states that this fact sheet selects examples for Utah landscapes and that they require proper placement and maintenance. FireApproved publishes 83 exact source owners at Utah publication scope. The table is not a site-specific planting clearance.
Yavapai County (AZ footprint); partial normalized coverage · 2025-03-14
University of Arizona Cooperative Extension authors Bulletin 34 for Yavapai County. FireApproved publishes 198 exact source owners from its resistant and prone tables and keeps the county boundary visible. County publication scope is regional Arizona context, never statewide scope.
2. Why this plant is relevant here
State distribution
Documented in ID, OR, WA.
Native range
Introduced / established
USDA hardiness
3 applicable cited hardiness statements overlap but have different boundaries; compare each complete source row.
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
2 ecological invasive reports.
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.
4–9 explicit range · whole zone precision · source stated
Source taxon: Leucanthemum x superbum · exact match.
Source location: Shasta daisy 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.
Fire-resistant Landscape Plants for the Willamette Valley: Shasta Daisy profile (PDF page 89) [osu-em-9103-profile] (with its recommendation)
Fire-resistant plant profile galleries: Shasta daisy — Leucanthemum x superbum [osu-2023-perennials-gallery] (with its recommendation)
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.
Listed as Shasta daisy — Leucanthemum x superbum. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.
