Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Bridalwreath spirea is rated fire resistant overall, though two sources give it more cautious marks.
Three sources support that conclusion. Virginia Cooperative Extension and Virginia Tech give it low flammability on a three-point scale, where low is the recommended category. Bridalwreath spirea also appears in University of Tennessee Extension's Firewise plant tables. Maryland DNR, New Jersey DEP, and West Virginia Division of Forestry include it among plants with stronger resistance to ignition by wildfires. Their compiled list describes these plants as relatively resistant to fire but provides no comparative scale or method for individual plants.
The other findings are less favorable. Ohio State University Extension rates bridalwreath spirea medium on its five-band flammability scale, which places it in the mixed category. A USDA Forest Service and state Firewise selector rates it At Risk (3) on a four-part scale extending from its most favorable Firewise category to its least favorable Not Firewise category. These are cautious assessments rather than outright findings that the plant is not Firewise.
Taken together, the sources lean toward fire resistance but do not agree unanimously. Bridalwreath spirea is a high-water shrub that reaches about eight feet at maturity, and heavy pruning will destroy its natural arching habit. Its fire-resistant classification is supported by limited primary evidence, so it is better understood as a qualified judgment than as proof of uniformly low flammability.
Form
shrub
Mature height
~8 ft
Water need
high
Rated in
Maryland, New Jersey, and West Virginia; Ohio / Midwest; Tennessee; Virginia / Mid-Atlantic +1
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
Maryland Forest Service says the list contains plants that can be grown in Maryland and identifies Maryland natives. FireApproved publishes 169 exact source owners from the 180 printed rows; an unrepresentable form and duplicate-owner rows are not broadened. The list calls itself non-comprehensive and does not establish suitability for every Maryland site.
NJ; partial normalized coverage
New Jersey DEP publishes a state edition saying the listed plants can be grown in New Jersey and are relatively resistant to fire. Its same 180 printed taxon occurrences map to the 169 conservative owners already normalized for the template family. The list is non-comprehensive and does not establish suitability for every New Jersey site or override the Pinelands Commission's separate placement and fuel-break rules.
WV; partial normalized coverage · 2026-08-26
West Virginia Division of Forestry publishes a state edition saying the listed plants can be grown in West Virginia and are relatively resistant to fire. Its same 180 printed taxon occurrences map to the 169 conservative owners already normalized for the template family. The list is non-comprehensive and provides no comparative or site-specific rating.
Ohio State University Extension Bulletin 921 is an Ohio publication that describes Ohio fire seasons and landscape conditions and labels nativity to Ohio. FireApproved publishes 352 exact source-owning plant records from its eight rated tables. This historical publication scope does not assert current extension endorsement or that a listed plant suits every Ohio site.
University of Tennessee Extension SP685 is Tennessee landscape guidance and publishes 78 represented plant owners. Most table rows are a carrier of Virginia Firescapes rather than an independent rating; Tennessee source scope does not change that lineage or establish site suitability.
Virginia Cooperative Extension's publication opens with Virginia wildfire conditions, identifies its Virginia Firewise Landscaping Task Force, and labels plants native to Virginia. FireApproved publishes 306 exact source owners. Publication scope does not establish parcel suitability or current endorsement of this archived 2009 list.
2. Why this plant is relevant here
State distribution
Documented in AL, AR, CT, DC, DE, GA, IL, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, PA, TN, VA, WV.
Native range
Introduced / established
23 sourced range or established records. This is not an invasive warning.
USDA hardiness
Documented minimum 4a; 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 5 · single-value meaning unresolved · whole zone precision · source stated
Source taxon: Spiraea prunifolia · 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 91824, 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 2 — 5–10 ft from the structure; maintained lawn or fuel breaks, with easily ignited evergreens avoided [Fire Performance Plant Selector landscape zone] (mid-scale rating)
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.
Listed as Spirea prunifolia (Bridalwreath Spirea). The source says listed species exhibit stronger resistance to ignition by wildfires. Source comments: Heavy pruning will destroy this shrubs natural arching habit
