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Poinciana

Delonix regia · Fabaceae

Your local evidence lens

Separate evidence questions, never one approval badge

Set a ZIP to compare this record with state distribution, native range, USDA hardiness, and invasive records.

A genus split is not a placement verdict. Set a ZIP to read the local documented split.

1. Fire evidence and conditions

Fire evidence: Mixed evidence — location does not change the cited classification.
Fire-performance conditions: No test or rating condition is normalized.
Fire ecology context: No section-reviewed fire-ecology context is normalized.
Placement evidence: 1 source placement record; source schemes remain separate.
Evidence regions: Global; Tasmania, Australia
Maintenance: No sourced horticultural maintenance assertion is normalized; fire-test conditions do not supply maintenance advice.

2. Why this plant is relevant here

State distribution: Documented in FL, HI, PR, VI.
Native range: No current cited or legacy state native range is normalized.
Introduced / established: 3 sourced range or established records; set a location to match them. This is not an invasive warning.
USDA hardiness: Documented minimum 10a; no upper limit is documented.

3. Legal, ecological, and broader status

Legal-list status: Set a location for an exact legal-list result; source silence is not clearance.
Seed-list status: Set a location to compare the separate state noxious-weed seed layer.
Reported invasive here: 2 ecological invasive reports; set a location to distinguish exact from regional context.
Broader regional context: Aggregate AK, HI, and L48 evidence is shown only as regional context, never as an exact-state finding.
Federal context: Federal designations remain separate from state legal-list results.

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.

Poinciana (Delonix regia) — Photo: (c) Robert Taylor, some rights reserved (CC BY) (CC BY), via iNaturalist. Species-typical, not necessarily this cultivar.

Form: tree
USDA hardiness: Minimum 10a; upper limit not documented
Mature height: ~50 ft
Water need: moderate
Grows in: FL, HI, PR, VI
Rated in: Global; Tasmania, Australia
Family: Fabaceae
Evidence: 8 cited sources

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

3

exact source areas

Qualified

0

doubtful or extinct source rows

3 introduced source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04

Florida (FL)
Hawaii (HI)
Puerto Rico (PR)

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.

USDA PLANTS Database — Plant Characteristics · record DERE · PLANTS Help Document 2022; characteristics cache retrieved 2026-08-23 · as of 2026-08-26

Minimum 10a · no upper limit documented · half zone precision · derived containing band

Exact source measurement: 31°F; mapped only to its containing half-zone.

Source taxon: Delonix regia · source identifier match.

Source location: PlantCharacteristics record 78933, Temperature, Minimum (°F).

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.

Fire Resisting Garden Plants for the Urban Fringe and Rur…: should be avoided in the Building Protection Zone [Texas Building Protection Zone] (mid-scale rating)

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.

Mid-scale / conditional (1)

Fire Resisting Garden Plants for the Urban Fringe and Rural Areas — Tasmania Fire Service (Chladil & Sheridan; photographs Royal Tasmanian Botanical Gardens) · 2017 · original source Primary evidence Expert-curated lineage: utas-tree

“Moderate Flammability”

Listed without a rating (7)

FLAMITS: FLAMmability plant traiTS database — Dryad / Global Ecology and Biogeography · Dryad version 9 · original source Corroboration Trait database lineage: meta-aggregator

7 cited rows from this source; its identity, lineage and tier are stated once.
- “calorific value (kcal/kg): 5930” · score 5930 (FLAMITS — calorific value (kcal/kg))
  
  FLAMITS record 1160; Combustibility measurement; plant part wood; fuel live; predrying no; device calorimeter; site Chakradhari2016-1; sampling december. Primary study Chakradhari2016: Chakradhari, S., & Patel, K. S. (2016). Combustion characteristics of tree woods. Journal of Sustainable Bioenergy Systems, 6, 31-43.
- “time to flaming (s): 5” · score 5 (FLAMITS — time to flaming (s))
  
  FLAMITS record 17083; Ignitability measurement; plant part wood; fuel live; predrying yes; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.
- “rate of burning spread (cm/s): 0.17” · score 0.17 (FLAMITS — rate of burning spread (cm/s))
  
  FLAMITS record 17084; Sustainability measurement; plant part wood; fuel live; predrying yes; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.
- “flaming duration (s): 56” · score 56 (FLAMITS — flaming duration (s))
  
  FLAMITS record 17085; Sustainability measurement; plant part wood; fuel live; predrying yes; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.
- “time to flaming (s): 6” · score 6 (FLAMITS — time to flaming (s))
  
  FLAMITS record 17128; Ignitability measurement; plant part wood; fuel live; predrying no; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.
- “rate of burning spread (cm/s): 0.14” · score 0.14 (FLAMITS — rate of burning spread (cm/s))
  
  FLAMITS record 17129; Sustainability measurement; plant part wood; fuel live; predrying no; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.
- “flaming duration (s): 45” · score 45 (FLAMITS — flaming duration (s))
  
  FLAMITS record 17130; Sustainability measurement; plant part wood; fuel live; predrying no; device burning bench; site Okafor2020-1; sampling ND. Primary study Okafor2020: Okafor, V.N., Okafor, U.W., Anyalebechi, R.I., Obiadi, M.C., Obiefuna, J.N., & Okonkwo, C.P. (2020). Density effects and its relationship with major flame characteristics of selected fire tolerant trees in south-east Nigeria: a look at oven and sun dried timbers. Journal of chemical society of Nigeria, 45, 852-862.

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

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

Delonix regia (Poinciana). FireApproved. https://fireapproved.com/plants/delonix-regia/. Last verified 2026-08-23.