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.
2. Why this plant is relevant here
State distribution
Documented in CT, DC, DE, IA, IN, MA, MD, ME, MI, MN, NH, NJ, NY, OH, PA, RI, VA, VT, WI, WV.
Native range
Current cited native range in CT, IA, MA, MD, ME, MI, MN, NH, NJ, NY, PA, VA, VT, WI, WV.
Introduced / established
No introduced or established row is normalized; that does not prove native status.
USDA hardiness
Documented minimum 2b; no upper limit is documented.
3. Legal, ecological, and broader status
Legal-list status
Set a location for an exact legal-list result; source silence is not clearance.
Seed-list status
Set a location to compare the separate state noxious-weed seed layer.
Reported invasive here
No ecological invasive report is normalized; that does not prove noninvasiveness.
Broader regional context
Aggregate AK, HI, and L48 evidence is shown only as regional context, never as an exact-state finding.
Federal context
Federal designations remain separate from state legal-list results.
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.
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 3 · single-value meaning unresolved · whole zone precision · source stated
Source taxon: Abies balsamea · 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.
Source location: PlantCharacteristics record 15309, Temperature, Minimum (°F).
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.
Eastern United States Fire Performance Plant Selector: Landscape Zone 4 — beyond 30 ft; outside the selector's recommendation area [Fire Performance Plant Selector landscape zone] (mid-scale rating)
Firewise Landscaping: keep 30 ft from the home (Zone 3) [OSU B921 source-category siting] (with its avoid rating)
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.
8 cited rows from this source; its identity, lineage and tier are stated once.
“calorific value (kcal/kg): 5060”
· score 5060 (FLAMITS — calorific value (kcal/kg))
FLAMITS record 5030; Combustibility measurement; plant part leaves; fuel all; predrying yes; device calorimeter; site Hough1969-3; sampling june. Primary study Hough1969: Hough, W. A. (1969). Caloric Value of Some Forest Fuels of the Southern United States. Res. Note SE-120. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station.
“calorific value (kcal/kg): 5040”
· score 5040 (FLAMITS — calorific value (kcal/kg))
FLAMITS record 5031; Combustibility measurement; plant part twigs; fuel all; predrying yes; device calorimeter; site Hough1969-3; sampling june. Primary study Hough1969: Hough, W. A. (1969). Caloric Value of Some Forest Fuels of the Southern United States. Res. Note SE-120. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station.
“time to flaming (s): 137”
· score 137 (FLAMITS — time to flaming (s))
FLAMITS record 14105; Ignitability measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.
“time to flaming (s): 87”
· score 87 (FLAMITS — time to flaming (s))
FLAMITS record 14106; Ignitability measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.
“maximum energy flux (kW/m²): 146.4”
· score 146.4 (FLAMITS — maximum energy flux (kW/m²))
FLAMITS record 14116; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.
“maximum energy flux (kW/m²): 141.2”
· score 141.2 (FLAMITS — maximum energy flux (kW/m²))
FLAMITS record 14117; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.
“calorific value (kcal/kg): 2507”
· score 2507 (FLAMITS — calorific value (kcal/kg))
FLAMITS record 14127; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.
“calorific value (kcal/kg): 2412”
· score 2412 (FLAMITS — calorific value (kcal/kg))
FLAMITS record 14128; Combustibility measurement; plant part leaves; fuel live; predrying no; device calorimeter; site White1997-1; sampling spring. Primary study White1997: White, R. H., DeMars, D., & Bishop, M. (1997). Flammability of Christmas trees and other vegetation. Proceedings of the 24th international conference on fire safety. Melbourne, Australia.