United States / Grow / Tarwood

Tarwood (Halocarpus bidwillii)
Photo: no rights reserved (CC0), via iNaturalist. Species-typical, not necessarily this cultivar.

Tarwood

Halocarpus bidwillii · Podocarpaceae · all Halocarpus records · also called Bog pine · Wikipedia

View Saved

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.

Halocarpus bidwillii keeps keep away recommendation. Then limited evidence on Halocarpus bidwillii. This is not one slogan — Halocarpus bidwillii. On halocarpus bidwillii, avoid does not replace limited evidence.

same form alternatives joins that picture on Halocarpus bidwillii.

Use evidence on Halocarpus bidwillii. The sourced rows remain on Halocarpus bidwillii. On halocarpus bidwillii, avoid sits with limited evidence beside Halocarpus bidwillii. The table for halocarpus bidwillii still names Halocarpus bidwillii.

Fire-resistant shrubs instead

Form
shrub
Region
New Zealand
Rated in
Global; New Zealand
On this lot

1. Fire evidence and conditions

Fire evidence
Highly flammable — location does not change the cited classification.
Evidence regions
Global; New Zealand

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.

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.

Avoids (1)

Listed without a rating (6)
Corroboration (6 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

    6 cited rows from this source; its identity, lineage and tier are stated once.

    • Primary study Mason2016: Mason, N. W. H., Frazao, C., Buxton, R. P., & Richardson, S. J. (2016). Fire form and function: evidence for exaptive flammability in the New Zealand flora. Plant Ecology, 217, 645-659.

      Shared row context: plant part leaves; fuel live; predrying yes; device muffle furnace; site Mason2016-5; sampling summer.

      • Shared measurement context: Ignitability measurement.

        • “temperature at smoke (°C): 159.1”

          FLAMITS record 8394.

        • “temperature at smoke (°C): 309.23”

          FLAMITS record 8395.

        • “temperature at flaming (°C): 271.39”

          FLAMITS record 8609.

        • “temperature at flaming (°C): 378.68”

          FLAMITS record 8610.

      • Shared measurement context: Combustibility measurement.

        • “temperature increase rate (°C/s): 19.57”

          FLAMITS record 8824.

        • “temperature increase rate (°C/s): 15.11”

          FLAMITS record 8825.

Fire-resistant shrubs instead

Fire-resistant shrubs listed above

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

Profiles: GBIF · iNaturalist · Wikidata · Wikipedia ·

Halocarpus bidwillii (Bog pine). FireApproved. https://fireapproved.com/plants/halocarpus-bidwillii/. Last verified 2026-08-23.