Enter your ZIP to see whether this is legal to plant in your state, and whether it survives your winter.
Sweet breath of spring is rated fire resistant, though the support is limited and includes a moderately Firewise rating rather than unanimous top marks.
Ohio State’s extension service and Virginia Tech both give the shrub an “L” flammability rating. For Ohio State, L is the second-lowest band on a five-band scale and counts as recommended; Virginia Tech uses L as the lowest of three bands and also treats it as recommended. The USDA Forest Service and state Firewise programs place it at 2 on their four-point scale, meaning “Moderately Firewise,” one step below their best rating. All three assessments therefore lean favorable, but they do so through different rating systems.
Sweet breath of spring is a shrub in the honeysuckle family that reaches about 10 feet at maturity, grows in part sun, and is hardy to USDA zone 5a. Ohio State says it adapts to many soils and pH levels and calls it less invasive, while Virginia Tech also notes that adaptability but describes it as weedy. It has been flagged as invasive in one jurisdiction, a separate concern from flammability.
The practical reading is reassuring but measured: several regional programs place the shrub on the fire-resistant side of their scales, while the Forest Service program stops at moderately Firewise. Its fire rating is favorable, not absolute.
Form
shrub
Mature height
~10 ft
Light
Part sun
Rated in
Ohio / Midwest; Virginia / Mid-Atlantic; eastern US
On this lot
1. Fire evidence and conditions
Fire evidence
Fire-resistant — location does not change the cited classification.
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.
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, CT, DC, DE, GA, KY, LA, MD, MS, NC, NJ, NY, OH, PA, SC, TN, TX, UT, VA, WV.
Native range
Introduced / established
19 sourced range or established records. This is not an invasive warning.
USDA hardiness
Only uncertain or inapplicable hardiness rows are cited; no primary zone is projected.
3. Legal, ecological, and broader status
Legal-list status
Seed-list status
Reported invasive here
1 ecological invasive report.
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 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.
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] (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.
