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Yes, flax is rated fire resistant by four university extension services, although that does not make it fireproof.
Utah State University says Linum species can be firewise when properly used and maintained. Montana State lists flax among fire-resistant plants adapted to Montana, while Michigan State calls Linum spp. wildfire-resistant and recommends it for Michigan’s climate. Michigan places its flax row among annuals, even though flax is otherwise identified as a perennial; that classification difference does not change its fire-resistance verdict. Arizona’s Yavapai County extension service also includes flax and blue flax among fire-resistant plants.
This is useful agreement across Utah, Montana, Michigan, and Arizona, but these are expert landscape recommendations rather than promises about every plant in every condition. Arizona gives the clearest limit: its resistant plants tend to resist ignition when irrigated and maintained, and they are not fireproof. Utah likewise ties its firewise designation to proper use and maintenance. Those conditions belong to those particular recommendations, not to a universal test applied by all four services.
For a homeowner, the practical reading is straightforward: flax belongs among the plants these services recommend for fire-conscious landscaping. Its fire-resistant label supports choosing it, while the Utah and Arizona guidance makes clear that proper use and upkeep still matter.
Form
perennial
Rated in
Michigan / Great Lakes; Montana / Northern Rockies; Utah / Intermountain West; Yavapai County, Arizona
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence
Evidence regions
Michigan / Great Lakes; Montana / Northern Rockies; Utah / Intermountain West; Yavapai County, Arizona
Maintenance
Typed publication scope: 4 scopes across 4 cited fire sources
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.
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 MI.
Native range
Introduced / established
USDA hardiness
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.
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 Flax, Blue Flax — Linum sp.. The bulletin says fire-resistant plants tend to resist ignition when irrigated and maintained, while fire-prone plants may ignite readily and burn intensely.
