---
license: cc-by-4.0
language:
- en
pretty_name: FireApproved.com plant flammability evidence directory
tags:
- wildfire
- fire-safety
- plants
- ecology
- open-data
configs:
- config_name: evidence
  data_files: plants-evidence.csv
- config_name: sources
  data_files: plant-sources.csv
---
# FireApproved.com plant flammability evidence directory

Structured plant-flammability evidence from
[FireApproved.com](https://fireapproved.com), a citation directory for
wildfire-resistant construction and plants. The site issues no ratings
of its own. Every status is computed from cited evidence.

- **3,801 plant records / 27,007 evidence rows**, plus the 130-source
  registry those rows are attributed to.
- Each row keeps the source's own wording, the edition, and the date
  the document was read. Classifications are computed by a published
  rule (lineage, not row count; direct fire evidence is never silently
  outvoted by curation).
- `croissant.json` is Croissant 1.1, validated with `mlcroissant`.
- Canonical: https://fireapproved.com/plants/ — the `.json` replaces
  the page's trailing slash, so `/plants/{id}/` is JSON at
  `/plants/{id}.json`.
- Snapshot: https://github.com/grysngrhm-tech/fireapproved-data/releases/tag/v2026.08.25
- Coverage: source documents dated 1968 through 2026-08-25 (23,103 of 27,007 rows carry a document date). 130 sources in the United States, Europe, the Mediterranean, Australia, New Zealand, South America, and other named regions. Not a global flora census.
- Methodology: https://fireapproved.com/methodology

**Citation:** FireApproved.com (2026). Plant flammability evidence
directory [Data set]. https://fireapproved.com/plants/ — CC BY 4.0.
Photo fields are metadata only; images are not included and are not
CC BY.

This is one of two FireApproved.com datasets. The materials census is
a separate repo (`osfm-bml-censuses`). The 5-row ORSC R327 table is
not posted standalone.

## Dataset viewer

The Hub viewer is pinned to the two CSVs (`evidence` and `sources`).
`croissant.json` is Croissant 1.1 metadata, not a table.
`plants-evidence.jsonl` and `plant-sources.json` are lossless twins.

## Recompute a classification

`recompute-plant-class.ipynb` loads the CSV, runs the published rule, and
compares three plants (`abelia-floribunda`, `kalopanax-pictus`,
`zygophyllum`) to the live JSON twins. It does not assign ratings.

Snapshot lookup (opens the live page):
https://huggingface.co/spaces/fireapproved/plant-lookup

<!-- about:start -->

## About FireApproved.com

**Every wildfire plant list contradicts the next one, and almost none of them
say why.** One extension bulletin calls a shrub fire-resistant, the next calls
it a hazard, and neither shows its work.

[**FireApproved.com**](https://fireapproved.com) is where you find out what is
actually behind the advice. Look up a plant and you see every source that
rated it, the exact words each one used, when it was published — and where
they disagree, laid side by side instead of averaged into one anonymous
verdict you have to take on faith.

It covers the whole decision, not just the planting list:

- 📍 **[Places](https://fireapproved.com/places/)** — start with where you are.
  One briefing per state covering what the code adopted there
  [actually says](https://fireapproved.com/requirements/), cited to the
  ordinance rather than to a summary of it.
- 🌿 **[Plants](https://fireapproved.com/plants/)** — thousands of taxa with
  every cited rating, browsable [by genus](https://fireapproved.com/plants/genus/)
  or [by the source that rated it](https://fireapproved.com/plants/source/), and
  grouped for a place on [Grow](https://fireapproved.com/grow/).
- 🏠 **[Materials](https://fireapproved.com/materials/)** — the vents, siding,
  decking, windows and roofing that are actually listed and tested, with the
  [standards](https://fireapproved.com/standards/) behind them and a
  [lapse log](https://fireapproved.com/materials/lapse-log/) for listings that
  have expired. [Build](https://fireapproved.com/build/) walks the house by
  assembly.
- 📚 **[Learn](https://fireapproved.com/learn/)** — plain-language answers,
  from [where to start](https://fireapproved.com/guides/hardening-ladder/) to
  [how to read a plant page](https://fireapproved.com/guides/how-to-read-a-plant-page/),
  with a [glossary](https://fireapproved.com/glossary/) for the terms the codes
  use and [the full guide index](https://fireapproved.com/guides/).
- 🔎 **[Findings](https://fireapproved.com/findings/)** — the places where a
  test result or a jurisdiction contradicts what everyone repeats.

**Start here:** [fireapproved.com](https://fireapproved.com) ·
[where you are](https://fireapproved.com/places/) ·
[the plant directory](https://fireapproved.com/plants/) ·
[the materials directory](https://fireapproved.com/materials/) ·
[how this is built](https://fireapproved.com/methodology/)

> **Changed since the 2026-08-25 snapshot.** The site reorganized around
> location on 2026-08-26. `/states/`, `/plants/state/` and `/plants/zone/` are
> gone; [`/places/`](https://fireapproved.com/places/) is the state trunk, and
> [Build](https://fireapproved.com/build/), [Grow](https://fireapproved.com/grow/)
> and [Learn](https://fireapproved.com/learn/) are the three branches off it.
> Record URLs in the data files (`/plants/{id}/`, `/materials/{id}/`) did not
> move, so rows published against the earlier snapshot still resolve.

### Why this data is worth citing

The site issues no rating of its own. Every status is computed from cited
evidence by a published rule, and four properties make that reproducible:

1. **Every verdict keeps the source's own words** — its phrasing, its edition,
   and the date the document was read, not a label invented later.
2. **Classifications are computed, never hand-assigned.** See
   [the methodology](https://fireapproved.com/methodology/).
3. **Evidence deduplicates by lineage, not by row.** A rater who republishes
   the same finding in five places counts once, so a widely-copied opinion
   cannot outvote a laboratory result.
4. **Conflicts are preserved, not averaged.** When sources disagree the record
   says so and shows both sides.

The source registry ships alongside the evidence, so you can recompute or
re-weigh every classification yourself rather than trusting ours.

The live site is the source of truth and is always current. Machine-readable
entry points: [llms.txt](https://fireapproved.com/llms.txt) ·
[llms-full.txt](https://fireapproved.com/llms-full.txt) ·
[every page has a JSON twin](https://fireapproved.com/data/) (the `.json`
replaces the trailing slash).

*FireApproved is a citation directory. It is not a listing body, an insurer,
or a building official — verify at the source before you specify.*