hophornbeam

Ostrya virginiana · Betulaceae · all Ostrya records · Wikipedia

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Hophornbeam is fire resistant, with consistent support from six extension sources.

North Carolina’s extension service rates it low on a four-level flammability scale, and its 2025 assessment again calls it low flammability. Ohio State rates hophornbeam low, one step above very low on its five-point scale. Virginia Tech also rates it low, the lowest of its three flammability bands. Tennessee lists it as a Firewise plant. For Willamette Valley growing conditions, Oregon State recommends hophornbeam as a fire-resistant plant. Together, these findings agree across several regional systems rather than depending on one rating method.

The qualifications concern how the tree grows, not a conflicting fire verdict. Ohio State describes hophornbeam as stress intolerant, suited to the understory, and sensitive to insects. Virginia Tech says it tolerates dry soils. It is a low-water tree for full sun, matures at about 25 feet, and is hardy to USDA zone 5a. Oregon State’s profile separately prints zones 3 through 9.

Hophornbeam’s native range spans four U.S. regions: Southeastern, Northeastern, North-Central and South-Central. Its low-flammability ratings make it a well-supported fire-resistant choice, though the regional growing guidance still matters when deciding whether it suits a particular site.

Form: tree
Mature height: ~25 ft
Light: Full sun
Water need: low
Rated in: Global; Maine; NC; North Carolina +6

On this lot

1. Fire evidence and conditions

Fire evidence: Fire-resistant — location does not change the cited classification.
Fire-performance conditions
Fire ecology context
Placement evidence: 4 source placement records; source schemes remain separate.
Evidence regions: Global; Maine; NC; North Carolina; North Carolina / southeastern US; Ohio / Midwest; Oregon (Willamette Valley); Tennessee; Virginia / Mid-Atlantic; eastern US
Maintenance

Typed publication scope: 6 scopes across 6 cited fire sources

Maine fire-resistant plant list · Official scoped edition
- ME; partial normalized coverage · 2013-10-23
  Maine Forest Service presents a partial list for landscaping 30-100 feet from a structure. FireApproved publishes only 39 unique exact current/accepted matches plus Rhus typhina from the source's explicit parenthetical; unresolved, abbreviated, misspelled, absent, and duplicate-owner rows remain held.
Fire-Resistant Landscaping in North Carolina (AG-874) · Official scoped edition
- NC; complete normalized coverage · 2025-03-26
  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.
Firewise Landscaping (OSU Extension Bulletin 921) · Official scoped edition
- OH; partial normalized coverage · 2006-03-01
  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.
Fire-resistant Landscape Plants for the Willamette Valley (EM 9103) · Official scoped edition
- 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.
Landscaping Guidelines to Protect Your Home from Wildfire (SP685) · Official scoped edition
- TN; partial normalized coverage · 2006-10-24
  University of Tennessee Extension SP685 is Tennessee landscape guidance and publishes 78 represented plant owners. Most table rows are a carrier of Virginia Firescapes rather than an independent rating; Tennessee source scope does not change that lineage or establish site suitability.
Virginia Firescapes — Firewise Landscaping for Woodland Homes (430-300) · Official scoped edition
- VA; partial normalized coverage · 2009-04-15
  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, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY.
Native range: Current cited native range in AL, AR, CT, DC, DE, FL, GA, IA, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, NC, ND, NE, NH, NJ, NY, OH, OK, PA, RI, SC, SD, TN, TX, VA, VT, WI, WV, WY.
Introduced / established
USDA hardiness: 2 applicable cited hardiness statements overlap but have different boundaries; compare each complete source row.

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.

Current native

39

exact source areas

Current introduced

0

exact source areas

Qualified

0

doubtful or extinct source rows

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

Alabama (AL)
Arkansas (AR)
Connecticut (CT)
District of Columbia (DC)
Delaware (DE)
Florida (FL)
Georgia (GA)
Iowa (IA)
Illinois (IL)
Indiana (IN)
Kansas (KS)
Kentucky (KY)
Louisiana (LA)
Massachusetts (MA)
Maryland (MD)
Maine (ME)
Michigan (MI)
Minnesota (MN)
Missouri (MO)
Mississippi (MS)
North Carolina (NC)
North Dakota (ND)
Nebraska (NE)
New Hampshire (NH)
New Jersey (NJ)
New York (NY)
Ohio (OH)
Oklahoma (OK)
Pennsylvania (PA)
Rhode I. (RI)
South Carolina (SC)
South Dakota (SD)
Tennessee (TN)
Texas (TX)
Virginia (VA)
Vermont (VT)
Wisconsin (WI)
West Virginia (WV)
Wyoming (WY)

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.

Eastern United States Fire Performance Plant Selector · record ostrya-virginiana · 2016-wayback · as of 2026-08-26

Source prints 5 · single-value meaning unresolved · whole zone precision · source stated

Source taxon: Ostrya 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.
Fire-resistant Landscape Plants for the Willamette Valley (EM 9103) · EM 9103, February 2015 · as of 2026-08-26

3–9 explicit range · whole zone precision · source stated

Source taxon: Ostrya virginiana · exact match.

Source location: Eastern Hop Hornbeam or Ironwood profile (PDF page 175).
USDA PLANTS Database — Plant Characteristics · record OSVI · PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23 · as of 2026-08-26

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

Exact source measurement: -38°F; mapped only to its containing half-zone.

Source taxon: Ostrya virginiana · source identifier match.

Source location: PlantCharacteristics record 70102, 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 3 — 10–30 ft from the structure; thin vegetation, remove debris, and minimize plant massing [Fire Performance Plant Selector landscape zone] (mid-scale rating)
Fire-resistant Landscape Plants for the Willamette Valley: Eastern Hop Hornbeam or Ironwood profile (PDF page 175) [osu-em-9103-profile] (with its recommendation)
North Carolina Extension Gardener Plant Toolbox: ostrya-virginiana [nc-toolbox-flammability-facet] (with its recommendation)
Maine fire-resistant plant list: Trees, page 1: American hophornbeam - Ostrya virginiana [Maine Forest Service list section and page] (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.

Mid-scale / conditional (1)

Eastern United States Fire Performance Plant Selector — USDA Forest Service Northeastern Area S&PF + state Firewise programs (WV, OH, PA, DE, DC, MD, NJ) · 2016-wayback · original source Primary evidence Keyed curation lineage: ufifas-srs-tree

“MODERATELY Firewise (2)”

Small native tree once used to make wooden gears and wheel hubs.

Listed without a rating (4)

Corroboration (4 rows from 1 source)

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

4 cited rows from this source; its identity, lineage and tier are stated once.
- 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.
  
  Shared row context: plant part litter; fuel all; predrying no; device burning bench; site Mola2014-1; sampling may and june.
  - “flame height (cm): 43.2”
    
    FLAMITS record 9235; Combustibility measurement.
  - “flaming duration (s): 69.8”
    
    FLAMITS record 9252; Sustainability measurement.
  - “burnt biomass (%): 99.26”
    
    FLAMITS record 9269; Consumability measurement.
  - “time to smouldering (s): 278.4”
    
    FLAMITS record 9286; Ignitability measurement.

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

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Ostrya virginiana (Hophornbeam). FireApproved. https://fireapproved.com/plants/ostrya-virginiana/. Last verified 2026-08-23.