Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Blackberry is generally rated fire resistant, but one Portuguese fuel-management study puts Rubus in its control category.
Five of six assessments favor blackberry or its genus as a fire-resistant landscape choice. FireSmart BC calls blackberry approved while also flagging it for more research. Montana State University Extension lists Rubus among fire-resistant plants adapted to Montana. King County places Rubus species among fire-resistant shrubs, Michigan State recommends them for its climate, and Girona’s provincial government and Catalan fire service rate the genus “very recommended” under a five-level garden-suitability method.
The Portuguese assessment asks a narrower land-management question. Researchers from the University of Évora and the Polytechnic Institute of Viana do Castelo put Rubus in the Control column for fuel-management bands in mainland Portugal. Their control group covers sun-loving vegetation associated with fine fuels and traits linked to faster combustion or greater flammability. That means controlling Rubus within those bands, not banning blackberry everywhere.
These assessments use different regional premises and decision rules. FireSmart uses a binary approval chart, the extension programs publish regional plant lists, and Girona weighs fire evidence alongside maintenance, fuel structure, origin, invasiveness, and expert experience. The conflict remains, but the balance supports treating blackberry as fire resistant, with a specific caution in Portuguese fuel-management bands and an explicit call from FireSmart BC for more research.
Form
shrub
Rated in
British Columbia; Catalonia, Spain; Mainland Portugal; Michigan / Great Lakes +4
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Southern Idaho (ID footprint); partial normalized coverage · 2013-11-08
The official database labels itself "For Southern Idaho" and describes Idaho residents at the urban-rangeland interface. FireApproved publishes 419 existing plant owners that cite its scored rows. This bounded Southern Idaho scope is regional context, not statewide coverage or a conclusion that the score transfers unchanged to every Idaho site.
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.
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.
2. Why this plant is relevant here
State distribution
Documented in ID.
Native range
Introduced / established
USDA hardiness
Documented range 3–9.
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.
3–9 explicit range · whole zone precision · source stated
Source taxon: Rubus spp. · exact match.
Source location: Blackberry and Raspberry profile (PDF page 112).
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 Resistance of Plants Master Database: plantable at 50' from home [Idaho minimum planting distance] (mid-scale rating)
Selective Shrub Management to Preserve Mediterranean Fore…: selectively control in fuel-management bands in mainland Portugal [portugal-selective-fuel-band-control] (with its avoid rating)
Guía de pirojardinería: suitable inside or outside the 25-metre maximum-risk zone [girona-2020-iuf-25m-suitability] (with its recommendation)
Fire-resistant Landscape Plants for the Willamette Valley: Blackberry and Raspberry profile (PDF page 112) [osu-em-9103-profile] (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.
Rubus spp. is rated “MUY 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.
Table 2 places this genus in the Control column. The authors describe the control group as heliophilous vegetation associated with fine fuels and traits linked to faster combustibility or greater flammability; this is a selective fuel-band management decision, not a global prohibition.
