United States / Grow / bottlebrush

bottlebrush (Callistemon sp.)
Photo: (c) Maja Dumat, some rights reserved (CC BY) (CC BY), via iNaturalist. Species-typical, not necessarily this cultivar.

bottlebrush

Callistemon sp. (accepted: Callistemon) · Myrtaceae · all Callistemon records · also called Callistemon · Wikipedia

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Callistemon remains a conflict in the evidence table. This is a genus-rank umbrella record, so the page keeps the disagreement at the taxonomic scope carried by the cited rows. The named lineage Protecting your home from wildfire — plants and tips that can reduce your risk is part of that split.

Use related plants for same-form alternatives rather than treating the umbrella record as a species choice. Then return to the evidence table to compare the source rows attached to Callistemon. The links separate two reader jobs: follow alternatives when choosing a plant, or inspect the evidence when reviewing why the record remains in conflict.

Questions

Why does this record show a conflict?

The computed recommendation is conflict. This page is a genus-rank umbrella record. Protecting your home from wildfire is one named lineage in that split, not a tie-breaker. Same-form alternatives are cited on the related list.

Fire-resistant shrubs instead

Form
shrub
Region
Australia; Valencia, Spain
Rated in
California; Dorset, United Kingdom; Global; South Carolina +2
On this lot

1. Fire evidence and conditions

Fire evidence
Mixed evidence — location does not change the cited classification.
Placement evidence
3 source placement records; source schemes remain separate.
Evidence regions
California; Dorset, United Kingdom; Global; South Carolina; Valencia, Spain / western Mediterranean; eastern US
Typed publication scope: 2 scopes across 2 cited fire sources

2. Why this plant is relevant here

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.

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 (3)

Corroboration (2 rows from 2 sources)

Avoids (1)

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 Gill1996: Gill, M., & Moore, P. (1996). Ignitibility of leaves of Australian plants. Centre for Plant Biodiversity Research, CSIRO Plant Industry.

      Shared row context: Ignitability measurement; plant part leaves; fuel live; device muffle furnace; site Gill1996-1; sampling march to april.

      • “time to flaming (s): 34.2”

        FLAMITS record 3823; predrying no.

      • “time to flaming (s): 6.81”

        FLAMITS record 3871; predrying yes.

Fire-resistant shrubs instead

Fire-resistant shrubs listed above

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

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

Callistemon sp. (Callistemon). FireApproved. https://fireapproved.com/plants/callistemon/. Last verified 2026-08-23.