United States / Grow / Japanese meadowsweet

Japanese meadowsweet (Spiraea japonica)
Photo: no rights reserved (CC0), via iNaturalist. Species-typical, not necessarily this cultivar.

Japanese meadowsweet

Spiraea japonica · Rosaceae · all Spiraea records · also called Japanese Spirea · Wikipedia

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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.

Extension services in Ohio and Michigan support Japanese meadowsweet as a fire-resistant choice.

Ohio State University Extension recommends Japanese meadowsweet with an L rating: low flammability, one step above very low on its five-point scale. Its assessment also says the shrub requires acid soil, is sensitive to disease, and adapts to urban settings. Michigan State University Extension reaches the same practical conclusion through a simpler system, listing Japanese meadowsweet among plants considered wildfire-resistant and recommended for Michigan’s climate.

The agreement matters because the two services express their judgments differently. Ohio State gives the plant a relative flammability grade, while Michigan State places it directly on a wildfire-resistant list. Neither finding means the plant cannot burn, but together they support choosing it where lower-flammability landscaping is desired.

Japanese meadowsweet is a rose-family shrub that reaches about two feet at maturity and needs moderate water. It is hardy to USDA zone 4b and has been introduced in 27 states, including Alabama, Arkansas, and California. Fire resistance does not settle every planting question, however: the species has also been flagged as invasive in one jurisdiction, so local restrictions and ecological concerns still deserve attention.

Form
shrub
Mature height
~2 ft
Water need
moderate
Rated in
Michigan / Great Lakes; Ohio / Midwest
Uses
mass-planting, specimen
On this lot

1. Fire evidence and conditions

Fire evidence
Fire-resistant — location does not change the cited classification.
Evidence regions
Michigan / Great Lakes; Ohio / Midwest
Typed publication scope: 2 scopes across 2 cited fire sources
  • Wildfire-resistant Landscape Plants for Michigan (Extension Bulletin E2948) · Official scoped edition
    • MI; partial normalized coverage · 2007-01-01

      Michigan State University Extension Bulletin E2948 is explicitly a list of wildfire-resistant landscape plants for Michigan and includes a Michigan-native field. FireApproved publishes 221 exact GBIF owners from 226 represented source rows and holds 15 complex or non-exact rows. This dated publication scope is not a current site-suitability determination.

  • Firewise Landscaping (OSU Extension Bulletin 921) · Official scoped edition
    • OH; partial normalized coverage · 2006-03-01

      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.

2. Why this plant is relevant here

State distribution
Documented in CT, DE, GA, IL, IN, KY, MA, MD, ME, MI, MO, NC, NH, NJ, NY, OH, PA, RI, SC, TN, VA, WV.
Introduced / established
27 sourced range or established records. This is not an invasive warning.
USDA hardiness
2 applicable cited hardiness statements overlap but have different boundaries; compare each complete source row.

3. Legal, ecological, and broader status

Reported invasive here
1 ecological invasive report.
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.

Current native

0

exact source areas

Current introduced

27

exact source areas

Qualified

0

doubtful or extinct source rows

27 introduced source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Alabama (AL)
  • Arkansas (AR)
  • California (CA)
  • Connecticut (CT)
  • Delaware (DE)
  • Georgia (GA)
  • Illinois (IL)
  • Indiana (IN)
  • Kentucky (KY)
  • Massachusetts (MA)
  • Maryland (MD)
  • Maine (ME)
  • Michigan (MI)
  • Missouri (MO)
  • North Carolina (NC)
  • New Hampshire (NH)
  • New York (NY)
  • Ohio (OH)
  • Pennsylvania (PA)
  • Rhode I. (RI)
  • South Dakota (SD)
  • Tennessee (TN)
  • Utah (UT)
  • Virginia (VA)
  • Vermont (VT)
  • Wisconsin (WI)
  • West Virginia (WV)

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.

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.

Recommends (2)

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

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

Spiraea japonica (Japanese Spirea). FireApproved. https://fireapproved.com/plants/spiraea-japonica/. Last verified 2026-08-23.