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Devilsclub is rated fire resistant, but the support is limited and one source says more research is needed.
FireSmart BC calls Oplopanax horridus a FireSmart-approved fire-resistant plant. Its chart is a compiled, yes-or-no guide covering 290 plants, rather than a measurement of ignition or heat release, and it specifically flags devilsclub as needing more research. King County’s forestry program also includes the species in its expert-curated table of fire-resistant shrubs for the Puget Sound Basin. The agreement supports the fire-resistant rating, while the research flag keeps that conclusion from being treated as settled.
For a homeowner, the sensible reading is that devilsclub has credible regional support as a fire-resistant landscape plant, not proof that it cannot burn. Its rating is useful for plant selection, but the limited evidence and FireSmart BC’s caution leave room for later research to refine that judgment.
Form
shrub
Rated in
British Columbia; western WA
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
British Columbia; western WA
Maintenance
Typed publication scope: 1 scope across 1 cited fire source
King County's current wildfire page links this list for the Puget Sound Basin. FireApproved publishes 82 exact source owners as basin context, not statewide Washington guidance or a site-specific recommendation.
2. Why this plant is relevant here
State distribution
Documented in AK, ID, MI, MT, NY, OR, WA.
Native range
Current cited native range in AK, ID, MI, MT, OR, WA.
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.
Native and introduced range evidence
These are exact U.S. botanical-area records from the cited range source. Native and
introduced describe biogeographic relationship, not fire performance or planting approval.
Doubtful and extinct rows stay visible but do not count as current presence.
The lossless worldwide derivative is retained once in the research corpus; object pages repeat only exact U.S. areas needed by the local lens. The JSON twin carries the same page assertions.
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.
