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Sweetbay is rated fire resistant, with all six findings placing it in a low-flammability or relatively fire-resistant category.
NC State’s extension service, Ohio State University Extension, Virginia Cooperative Extension, and forestry agencies in Maryland, New Jersey, and West Virginia all put Magnolia virginiana on the favorable side of their guidance.
The agreement spans different systems. North Carolina’s 2005 guidance rates sweetbay low on its four-level flammability scale, Ohio places it in the low band of a five-level scale, and Virginia gives it the low rating on a three-level scale. The Mid-Atlantic forestry agencies list sweetbay among plants with stronger resistance to ignition by wildfires. Their affirmative list has no comparative rating scale, but it points in the same direction as the extension ratings.
Fire resistant does not mean fireproof. Sweetbay needs part sun and high water. This tree in the magnolia family reaches about 25 feet at maturity. Ohio and Virginia both say sweetbay tolerates wet soils but not drought, and Ohio also calls it sensitive to wounds. Within those growing conditions, the published guidance consistently supports sweetbay as a lower-flammability landscape tree.
Form
tree
Mature height
~25 ft
Light
Part sun
Water need
high
Rated in
Global; Maryland, New Jersey, and West Virginia; NC; North Carolina +4
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Global; Maryland, New Jersey, and West Virginia; NC; North Carolina; North Carolina / southeastern US; Ohio / Midwest; Virginia / Mid-Atlantic; eastern US
Maintenance
Typed publication scope: 6 scopes across 4 cited fire sources
Maryland Forest Service says the list contains plants that can be grown in Maryland and identifies Maryland natives. FireApproved publishes 169 exact source owners from the 180 printed rows; an unrepresentable form and duplicate-owner rows are not broadened. The list calls itself non-comprehensive and does not establish suitability for every Maryland site.
NJ; partial normalized coverage
New Jersey DEP publishes a state edition saying the listed plants can be grown in New Jersey and are relatively resistant to fire. Its same 180 printed taxon occurrences map to the 169 conservative owners already normalized for the template family. The list is non-comprehensive and does not establish suitability for every New Jersey site or override the Pinelands Commission's separate placement and fuel-break rules.
WV; partial normalized coverage · 2026-08-26
West Virginia Division of Forestry publishes a state edition saying the listed plants can be grown in West Virginia and are relatively resistant to fire. Its same 180 printed taxon occurrences map to the 169 conservative owners already normalized for the template family. The list is non-comprehensive and provides no comparative or site-specific rating.
The complete three-table AG-874 plant list is explicitly for North Carolina and contains 202 low-, medium-, or high-flammability rows. FireApproved accounts for all source rows under its strict taxonomy and lineage rules; source scope does not establish local suitability at a particular North Carolina 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.
Virginia Cooperative Extension's publication opens with Virginia wildfire conditions, identifies its Virginia Firewise Landscaping Task Force, and labels plants native to Virginia. FireApproved publishes 306 exact source owners. Publication scope does not establish parcel suitability or current endorsement of this archived 2009 list.
2. Why this plant is relevant here
State distribution
Documented in AL, AR, DC, DE, FL, GA, LA, MA, MD, MS, NC, NJ, NY, OH, PA, SC, TN, TX, VA, WV.
Native range
Current cited native range in AL, AR, DC, DE, FL, GA, LA, MA, MD, MS, NC, NJ, NY, PA, SC, TN, TX, VA.
Introduced / established
USDA hardiness
Documented minimum 8b; no upper limit is documented.
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.
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.
Source prints 5 · single-value meaning unresolved · whole zone precision · source stated
Source taxon: Magnolia virginiana · exact match.
Source location: Cold Hardiness Zone field in the recovered selector record.
Not used for comparison: The recovered selector prints one Cold Hardiness Zone value but does not define it as a minimum threshold or a one-zone range.
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.
Eastern United States Fire Performance Plant Selector: Landscape Zone 3 — 10–30 ft from the structure; thin vegetation, remove debris, and minimize plant massing [Fire Performance Plant Selector landscape zone] (mid-scale rating)
North Carolina Extension Gardener Plant Toolbox: magnolia-virginiana [nc-toolbox-flammability-facet] (with its recommendation)
Firewise Landscaping Plants: Deciduous Trees [Maryland Firewise plant-form tables] (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.
Listed as Magnolia virginiana (Sweetbay Magnolia). The source says listed species exhibit stronger resistance to ignition by wildfires. Source comments: Tolerates wet soil but not drought
5 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Varner2021: Varner, J. M., Kane, J. M., Kreye, J. K., & Shearman, T. M. (2021). Litter Flammability of 50 Southeastern North American Tree Species: Evidence for Mesophication Gradients Across Multiple Ecosystems. Frontiers in Forests and Global Change, 4, 727042. Primary-study method: freshly fallen litter was oven-dried at 50–60°C for at least 24 hours to constant mass; each trial used a 15 g dry litter fuelbed, with five to seven trials per species.
Shared row context: plant part litter; fuel all; predrying yes; device burning bench; site Varner2021-1; sampling ND.
