United States / Grow / Amur corktree

Amur corktree (Phellodendron amurense)
Photo: (c) Taro Ietaka, some rights reserved (CC BY) (CC BY), via iNaturalist. Species-typical, not necessarily this cultivar.

Amur corktree

Phellodendron amurense · Rutaceae · also called Corktree · Wikipedia

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Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.

The Phellodendron amurense file for phellodendron amurense joins limited evidence. On phellodendron amurense, legal list sits versus that phellodendron amurense row. The facts stay as separate jobs on Phellodendron amurense. limited evidence and 4 legal list stay split for phellodendron amurense.

On phellodendron amurense, Phellodendron amurense also carries 1 ecological invasive for phellodendron amurense.

Use evidence on phellodendron amurense for phellodendron amurense. Use legal-list on phellodendron amurense for phellodendron amurense. The jumps stay with phellodendron amurense on Phellodendron amurense.

Form
tree
Mature height
~40 ft
Light
Full sun
Rated in
British Columbia; Global; Ohio / Midwest; eastern US
On this lot

1. Fire evidence and conditions

Fire evidence
Fire-resistant — location does not change the cited classification.
Placement evidence
1 source placement record; source schemes remain separate.
Evidence regions
British Columbia; Global; Ohio / Midwest; eastern US
Typed publication scope: 1 scope across 1 cited fire source
  • 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.

2. Why this plant is relevant here

State distribution
Documented in CT, DC, DE, IL, MA, MD, NJ, NY, OH, PA, WV.
Introduced / established
19 sourced range or established records. This is not an invasive warning.
USDA hardiness
Only uncertain or inapplicable hardiness rows are cited; no primary zone is projected.

3. Legal, ecological, and broader status

Legal-list status
4 legal-list records; the Place chip matches exact scope.
Reported invasive here
1 ecological invasive report.
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

0

exact source areas

Current introduced

19

exact source areas

Qualified

0

doubtful or extinct source rows

19 introduced source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Connecticut (CT)
  • Delaware (DE)
  • Illinois (IL)
  • Indiana (IN)
  • Massachusetts (MA)
  • Maryland (MD)
  • Michigan (MI)
  • Minnesota (MN)
  • Missouri (MO)
  • New Hampshire (NH)
  • New Jersey (NJ)
  • New York (NY)
  • Ohio (OH)
  • Pennsylvania (PA)
  • Rhode I. (RI)
  • Virginia (VA)
  • Vermont (VT)
  • Wisconsin (WI)
  • West Virginia (WV)

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.

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.

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.

Recommends (2)

Corroboration (1 rows from 1 source)

Mid-scale / conditional (1)

Listed without a rating (2)
Corroboration (2 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

    2 cited rows from this source; its identity, lineage and tier are stated once.

    • Primary study Shan2008: Shan, Y., Liu, N., & Shu, L. (2008). Flammability ranking of foliage species by factor analysis of physical and chemical pyric properties. Fire and Materials: An International Journal, 32, 371-382.

      Shared row context: plant part leaves; fuel live; predrying no; site Shan2008-1; sampling ND.

      • “temperature at flaming (°C): 267”

        FLAMITS record 12586; Ignitability measurement; device ignition temperature tester.

      • “calorific value (kcal/kg): 4505.97”

        FLAMITS record 12587; Combustibility measurement; device calorimeter.

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

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

Phellodendron amurense (Corktree). FireApproved. https://fireapproved.com/plants/phellodendron-amurense/. Last verified 2026-08-23.