United States / Grow / sweetpea

sweetpea (Lathyrus odoratus)
Photo: (c) nmoorhatch, some rights reserved (CC BY) (CC BY), via iNaturalist. Species-typical, not necessarily this cultivar.

sweetpea

Lathyrus odoratus · Fabaceae · all Lathyrus records · also called Sweet Pea · Wikipedia

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Form
perennial
Rated in
British Columbia; southern Idaho / Intermountain
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; southern Idaho / Intermountain
Typed publication scope: 1 scope across 1 cited fire source
  • 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.

2. Why this plant is relevant here

State distribution
Documented in CA, CT, ID, IL, KY, ME, MI, NC, NY, OH, SC, TN, UT, VA, WV.
Introduced / established
16 sourced range or established records. This is not an invasive warning.

3. Legal, ecological, and broader status

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

16

exact source areas

Qualified

0

doubtful or extinct source rows

16 introduced source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Arizona (AZ)
  • California (CA)
  • Connecticut (CT)
  • Idaho (ID)
  • Illinois (IL)
  • Kentucky (KY)
  • Maine (ME)
  • Michigan (MI)
  • Ohio (OH)
  • Oklahoma (OK)
  • Puerto Rico (PR)
  • South Carolina (SC)
  • Tennessee (TN)
  • Texas (TX)
  • Virginia (VA)
  • 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.

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)

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

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

Lathyrus odoratus (Sweet Pea). FireApproved. https://fireapproved.com/plants/lathyrus-odoratus/. Last verified 2026-08-23.