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Grand fir

Abies grandis · Pinaceae · all Abies records

Your local evidence lens

Separate evidence questions, never one approval badge

Set a ZIP to compare this record with state distribution, native range, USDA hardiness, and invasive records.

A genus split is not a placement verdict. Set a ZIP to read the local documented split.

1. Fire evidence and conditions

Fire evidence: Mixed evidence — location does not change the cited classification.
Fire-performance conditions: No test or rating condition is normalized.
Fire ecology context: No section-reviewed fire-ecology context is normalized.
Placement evidence: 0 source placement records; source schemes remain separate.
Evidence regions: Global; New Zealand
Maintenance: No sourced horticultural maintenance assertion is normalized; fire-test conditions do not supply maintenance advice.

2. Why this plant is relevant here

State distribution: Documented in CA, ID, MT, OR, WA.
Native range: Current cited native range in CA, ID, MT, OR, WA.
Introduced / established: No introduced or established row is normalized; that does not prove native status.
USDA hardiness: Documented minimum 3b; 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.

Grand fir (Abies grandis) — Photo: no rights reserved (CC0), via iNaturalist. Species-typical, not necessarily this cultivar.

Form: tree
USDA hardiness: Minimum 3b; upper limit not documented
Mature height: ~150 ft
Water need: moderate
Current cited native range: CA, ID, MT, OR, WA
Grows in: CA, ID, MT, OR, WA
Rated in: Global; New Zealand
Uses: ornamental
Family: Pinaceae
Evidence: 14 cited sources

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.

Current native

5

exact source areas

Current introduced

0

exact source areas

Qualified

0

doubtful or extinct source rows

5 native source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04

California (CA)
Idaho (ID)
Montana (MT)
Oregon (OR)
Washington (WA)

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.

USDA PLANTS Database — Plant Characteristics · record ABGR · PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23 · as of 2026-08-26

Minimum 3b · no upper limit documented · half zone precision · derived containing band

Exact source measurement: -33°F; mapped only to its containing half-zone.

Source taxon: Abies grandis · source identifier match.

Source location: PlantCharacteristics record 15321, Temperature, Minimum (°F).

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.

Mid-scale / conditional (1)

Low Flammability Plants directory — Fire and Emergency New Zealand (plant flammability testing at Lincoln University) · 2026 · original source Primary evidence Lab-tested lineage: lincoln-nz-tree

“Moderate flammability”

Moderate flammability classification.

Listed without a rating (13)

FLAMITS: FLAMmability plant traiTS database — Dryad / Global Ecology and Biogeography · Dryad version 9 · original source Corroboration Trait database lineage: meta-aggregator

13 cited rows from this source; its identity, lineage and tier are stated once.
- “calorific value (kcal/kg): 5357.31” · score 5357.31 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 5658; Combustibility measurement; plant part bark; fuel all; predrying yes; device calorimeter; site Kelsey1979-1; sampling ND. Primary study Kelsey1979: Kelsey, R. G., Shafizadeh, F., & Lowery, D. P. (1979). Heat content of bark, twigs, and foliage of nine species of western conifers. United States Department of Agriculture, Forest Service, Research Paper INT-261. Intermountain Forest and Range Experiment Station, Ogden, Utah.
- “calorific value (kcal/kg): 4941.72” · score 4941.72 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 5659; Combustibility measurement; plant part twigs; fuel all; predrying yes; device calorimeter; site Kelsey1979-1; sampling ND. Primary study Kelsey1979: Kelsey, R. G., Shafizadeh, F., & Lowery, D. P. (1979). Heat content of bark, twigs, and foliage of nine species of western conifers. United States Department of Agriculture, Forest Service, Research Paper INT-261. Intermountain Forest and Range Experiment Station, Ogden, Utah.
- “calorific value (kcal/kg): 5276.1” · score 5276.1 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 5660; Combustibility measurement; plant part leaves; fuel all; predrying yes; device calorimeter; site Kelsey1979-1; sampling ND. Primary study Kelsey1979: Kelsey, R. G., Shafizadeh, F., & Lowery, D. P. (1979). Heat content of bark, twigs, and foliage of nine species of western conifers. United States Department of Agriculture, Forest Service, Research Paper INT-261. Intermountain Forest and Range Experiment Station, Ogden, Utah.
- “calorific value (kcal/kg): 5075.47” · score 5075.47 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14292; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-1; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 5214” · score 5214 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14295; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-2; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 5111.3” · score 5111.3 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14298; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-3; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 5175.79” · score 5175.79 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14301; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-4; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 5273.71” · score 5273.71 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14304; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-5; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 4829.46” · score 4829.46 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14307; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-1; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 4905.89” · score 4905.89 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14310; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-2; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 4810.35” · score 4810.35 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14313; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-3; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 4910.67” · score 4910.67 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14316; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-4; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.
- “calorific value (kcal/kg): 4984.71” · score 4984.71 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 14319; Combustibility measurement; plant part leaves; fuel live; predrying yes; device calorimeter; site Williamson2002-5; sampling summer. Primary study Williamson2002: Williamson, N .M., & Agee, J. K. (2002). Heat content variation of interior Pacific Northwest conifer foliage. International Journal of Wildland Fire, 11, 91-94.

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Last verified 2026-08-23. JSON (CC BY 4.0)

Profiles: USDA PLANTS · GBIF · iNaturalist · Wikidata · ITIS

Abies grandis (Grand fir). FireApproved. https://fireapproved.com/plants/abies-grandis/. Last verified 2026-08-23.