Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Coast redwood carries an avoid direction on the evidence table. The Sequoia sempervirens record remains limited evidence, so the direction and depth of support stay visible together.
Under hardiness evidence, the species has 2 assertions. Its same-form alternatives are organized in related plants. Those routes answer different questions around the species: neither the hardiness material nor the comparison set adds rows to the limited pack. Keeping the accepted facts distinct preserves the coast redwood boundary and leaves the avoid result tied to its cited evidence. The species account remains the limit of that interpretation.
Documented minimum 7b; no upper limit is documented.
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
Broader regional context
Federal context
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.
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.
Source prints 7 · single-value meaning unresolved · whole zone precision · source stated
Source taxon: Sequoia sempervirens · exact match.
Source location: Cold Hardiness Zone field in the recovered selector record.
Not used for comparison: The recovered selector prints one Cold Hardiness Zone value but does not define it as a minimum threshold or a one-zone range.
Source location: PlantCharacteristics record 15281, 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.
Eastern United States Fire Performance Plant Selector: Landscape Zone 3 — 10–30 ft from the structure; thin vegetation, remove debris, and minimize plant massing [Fire Performance Plant Selector landscape zone] (with its avoid 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.
50 cited rows from this source; its identity, lineage and tier are stated once.
Primary study Belcher2016: Belcher, C. M. (2016). The influence of leaf morphology on litter flammability and its utility for interpreting palaeofire. Philosophical Transactions of the Royal Society B: Biological Sciences, 371, 20150163.
Shared row context: plant part litter; fuel all; predrying yes; device calorimeter; site Belcher2016-1; sampling ND.
Primary study Tran1992: Tran, H. C., & White, R. H. (1992). Burning rate of solid wood measured in a heat release rate calorimeter. Fire and materials, 16, 197-206.
Shared row context: plant part wood; fuel dead; predrying yes; device calorimeter; site Tran1992-1; sampling ND.
Primary study Varner2017: Varner, J. M., Kuljian, H. G., & Kreye, J. K. (2017). Fires without tanoak: the effects of a non-native disease on future community flammability. Biological Invasions, 19, 2307-2317.
Shared row context: plant part litter; fuel all; predrying yes; device burning bench; site Varner2017-1; sampling ND.
Primary study Belcher2017: Belcher, C. M., & Hudspith, V. A. (2017). Changes to Cretaceous surface fire behaviour influenced the spread of the early angiosperms. New Phytologist, 213, 1521-1532.
Shared row context: plant part litter; fuel all; predrying no; device calorimeter; site Belcher2017-1; sampling .
