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Yes, hellebore is rated fire resistant, though it still needs irrigation and maintenance rather than being treated as fireproof.
All four independent sources favor it. Ohio State University Extension places hellebore in the low band of its five-point flammability scale. Oklahoma State University Extension calls it a good landscape choice because this herbaceous perennial remains green in winter, reducing its flammability. The University of Arizona Cooperative Extension lists Lenten rose among fire-resistant plants when irrigated and maintained.
Assuming species-specific care, the garden-suitability method used by Diputació de Girona and Bombers de la Generalitat de Catalunya places Helleborus species in its “recommended” category. That judgment is broader than a simple ignition test: it combines fire research and firefighters’ experience with fuel structure, maintenance, origin, and invasiveness. The methods differ, but they point in the same direction across the Midwest, Oklahoma, Arizona, and Catalonia.
Hellebore is a perennial in the buttercup family, Ranunculaceae. Its strongest practical case is not that it cannot burn, but that several expert sources consistently place it among the better landscape choices, with winter-green foliage offered as a reason. Keep it irrigated and maintained, especially near a home, because fire resistance lowers risk rather than eliminating it.
Form
perennial
Rated in
Catalonia, Spain; Ohio / Midwest; Oklahoma; Yavapai County, Arizona
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Oklahoma State University Extension frames the article around statewide Oklahoma heat, drought, wildfire, and plant selection and publishes five unambiguous genus owners. Ambiguous common names remain excluded, and the prose examples do not establish suitability for every Oklahoma site.
Ohio State University Extension Bulletin 921 is an Ohio publication that describes Ohio fire seasons and landscape conditions and labels nativity to Ohio. FireApproved publishes 352 exact source-owning plant records from its eight rated tables. This historical publication scope does not assert current extension endorsement or that a listed plant suits every Ohio site.
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 OH.
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.
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.
Guía de pirojardinería: suitable inside or outside the 25-metre maximum-risk zone [girona-2020-iuf-25m-suitability] (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.
Helleborus spp. is rated “RECOMENDADA” by the guide's qualitative IUF garden-suitability method. The method assumes species-specific care and integrates fire evidence with fuel structure, maintenance, origin, invasiveness, and expert fire-service experience.
Listed as Lenten rose — Helleborus 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.
