Current native
8
exact source areas
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Magnolia grandiflora
Your local evidence lens
A genus split is not a placement verdict. Set a ZIP to read the local documented split.
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.
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.
Current native
exact source areas
Current introduced
exact source areas
Qualified
doubtful or extinct source rows
Eastern United States Fire Performance Plant Selector
Source prints 6 · single-value meaning unresolved
USDA PLANTS Database — Plant Characteristics
Minimum 7b · no upper limit documented
“RECOMENDADA”
Magnolia grandiflora 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.
Canberra Plant Selector — fire-retardant attribute
“Fire Retardant — Yes — Magnolia grandiflora”
The live Canberra Plant Selector marks “Magnolia grandiflora” as “Fire Retardant: Yes.”
Eastern United States Fire Performance Plant Selector
“NOT Firewise (4)”
Brown pubescence on underside of leaf is found on hardier forms-large white fragrant flowers-produces much debris.
Firewise Landscaping (OSU Extension Bulletin 921)
“H flammability”
Use cold hardy cultivars; broadleaved; considerable litter.
Virginia Firescapes — Firewise Landscaping for Woodland Homes (430-300)
“H flammability”
Broadleaved - considerable litter.
Evaluation of the flammability of trees and shrubs used in green barriers in southern Brazil
“Highly flammable (FV 4)”
Mean time to ignition 12.5 s; mean flame length 25.22 cm.
Tree fire-protection classification in Hito to Shinrin (人と森林)
“防火には不適”
Table 10-2 prints タイサンボク in the unsuitable fire-protection-power class. The Kagoshima reproduction says highly fire-protective trees can slow spread, promote upward dispersal of heat and smoke, and intercept flying embers.
Firewise Landscaping in North Carolina (E05-44596)
“Medium flammability rating”
Fire Resisting Garden Plants for the Urban Fringe and Rural Areas
“Moderate Flammability”
Low Flammability Plants directory
“Moderate flammability”
Moderate flammability classification.
Fire-Resistant Landscaping in North Carolina (AG-874)
“medium flammability”
North Carolina Extension Gardener Plant Toolbox — plant profiles and flammability ratings
“medium flammability”
NC Toolbox facet capture lists "Magnolia grandiflora" under the medium flammability tag.
FLAMITS: FLAMmability plant traiTS database
“time to flaming (s): 12.5”
FLAMITS record 440; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.
“burning duration (s): 7.44”
FLAMITS record 445; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.
“flammability value: 4”
FLAMITS record 450; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.
“flame height (cm): 25.22”
FLAMITS record 455; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Batista2012-1; sampling ND. Primary study Batista2012: Batista, C., Biondi, D., França, A., de Assunção, R., Tres, A., Costa, R., ... Kovalsyki, B. (2012). Evaluación de la Inflamabilidad de Árboles y Arbustos Utilizados en la Implementación de Barreras Verdes en el Sur del Brasil. Cuarto Simposio Internacional Sobre Políticas, Planificación y Economía de los Incendios Forestales: Cambio Climático e Incendios Forestales, Ciudad de México, México.
“ignition frequency (%): 100”
FLAMITS record 1428; Ignitability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
“maximum sample temperature (°C): 476”
FLAMITS record 1622; Combustibility measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
“burning duration (s): 24.5”
FLAMITS record 1816; Sustainability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
“estimated burnt biomass (%): 12.5”
FLAMITS record 2010; Consumability measurement; plant part branches; fuel all; predrying yes; device grill; site Cui2020a-1; sampling ND. Primary study Cui2020a: Cui, X., Paterson, A. M., Wyse, S. V., Alam, M. A., Maurin, K. J. L., Pieper, R., ... Curran, T. J. (2020a). Shoot flammability of vascular plants is phylogenetically conserved and related to habitat fire-proneness and growth form. Nature Plants, 6, 355-359.
“flame height (cm): 5.87”
FLAMITS record 9226; Combustibility measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.
“flaming duration (s): 55.2”
FLAMITS record 9243; Sustainability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.
“burnt biomass (%): 99.13”
FLAMITS record 9260; Consumability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.
“time to smouldering (s): 123.2”
FLAMITS record 9277; Ignitability measurement; plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june. Primary study Mola2014: Mola, J. M., Varner, J. M., Jules, E. S., & Spector, T. (2014). Altered Community Flammability in Florida's Apalachicola Ravines and Implications for the Persistence of the Endangered Conifer Torreya taxifolia. Plos One, 9, 8.
“time to flaming (s): 12.5”
FLAMITS record 11931; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“flame height (cm): 5.41”
FLAMITS record 11940; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“flammability value: 4”
FLAMITS record 11949; Ignitability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“burning duration (s): 7.4”
FLAMITS record 11958; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“flame height (cm): 40”
FLAMITS record 11967; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“rate of burning spread (cm/s): 44.5”
FLAMITS record 11976; Sustainability measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“calorific value (kcal/kg): 4259.3”
FLAMITS record 11985; Combustibility measurement; plant part twigs; fuel live; predrying no; device epiradiator; site Santos2018a-1; sampling ND. Primary study Santos2018a: Santos, J. F. L., Batista, A. C., Tres, A., Tetto, A. F., & Kovalsyki, B. (2018a). Flammability and combustibility of potential species for use as fuel breaks. In: D. X. Viegas, Advances in Forest Fire Research 2018 (pp. 788-793), Portugal, University of Coimbra.
“time to flaming (s): 6”
FLAMITS record 19417; Ignitability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildlandurban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.
“burning duration (s): 1.16”
FLAMITS record 19418; Sustainability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildlandurban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.
“maximum flame temperature (°C): 204.5”
FLAMITS record 19419; Combustibility measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildlandurban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.
“estimated burnt biomass (%): 2”
FLAMITS record 19420; Consumability measurement; plant part branches; fuel all; predrying yes; device grill; site Murray2023-1; sampling ND. Primary study Murray2023: Murray, B. R., Hawthorne, T., Curran, T. J., Krix, D. W., Wallace, M. I., Young, K., ... & Webb, J. K. (2023). Shoot flammability patterns among plant species of the wildlandurban interface in the fire-prone Greater Blue Mountains World Heritage Area. International Journal of Wildland Fire, Online early.