United States / Grow / black hawthorn

black hawthorn (Crataegus douglasii)
Photo: no rights reserved (CC0), via iNaturalist. Species-typical, not necessarily this cultivar.

black hawthorn

Crataegus douglasii · Rosaceae · all Crataegus records · also called Douglas Hawthorne · Wikipedia

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Is this one for your yard?

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

Form
tree
Mature height
~15 ft
Water need
high
Rated in
southern Idaho / Intermountain; western WA
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
southern Idaho / Intermountain; western WA
Typed publication scope: 2 scopes across 2 cited fire sources
  • Fire Resistance of Plants Master Database · Official scoped edition
    • Southern Idaho (ID footprint); partial normalized coverage · 2013-11-08

      The official database labels itself "For Southern Idaho" and describes Idaho residents at the urban-rangeland interface. FireApproved publishes 419 existing plant owners that cite its scored rows. This bounded Southern Idaho scope is regional context, not statewide coverage or a conclusion that the score transfers unchanged to every Idaho site.

  • Firewise Plants for the Puget Sound Basin · Official scoped edition
    • Puget Sound Basin (WA footprint); partial normalized coverage · 2011-01-01

      King County's current wildfire page links this list for the Puget Sound Basin. FireApproved publishes 82 exact source owners as basin context, not statewide Washington guidance or a site-specific recommendation.

2. Why this plant is relevant here

State distribution
Documented in AK, CA, ID, MI, MN, MT, ND, NV, OR, SD, WA, WI, WY.
Native range
Current cited native range in AK, CA, ID, MI, MN, MT, OR, WA, WI.
USDA hardiness
Documented minimum 2a; no upper limit is documented.

3. Legal, ecological, and broader status

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

9

exact source areas

Current introduced

0

exact source areas

Qualified

0

doubtful or extinct source rows

9 native source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Alaska (AK)
  • California (CA)
  • Idaho (ID)
  • Michigan (MI)
  • Minnesota (MN)
  • Montana (MT)
  • Oregon (OR)
  • Washington (WA)
  • Wisconsin (WI)

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 (1)

Mid-scale / conditional (1)

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

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

Crataegus douglasii (Douglas Hawthorne). FireApproved. https://fireapproved.com/plants/crataegus-douglasii/. Last verified 2026-08-23.