United States / Grow / hairawn muhly

hairawn muhly

Muhlenbergia capillaris · Poaceae · all Muhlenbergia records · also called Muhly, Gulf · 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.

Hairawn muhly has unsettled fire evidence, although both Texas assessments caution against putting it close to buildings.

The Sun City Texas Firewise Group lists Muhlenbergia capillaris as gulf muhly and gives it a high hazard score. Its scale concerns readiness to sustain burning at high temperature. A rating beyond medium activates the group's warning about planting within a building's nearest five feet.

Travis County makes a separate siting recommendation for the same grass. Its Texas A&M AgriLife Extension guide places gulf muhly among plants to avoid in Zone 1, extending 30 feet out from a structure. Under that system the grass belongs in the second or third zone.

The findings agree about avoiding close placement, despite their different distances. Neither treats hairawn muhly as a suitable planting immediately beside a house. A homeowner following Sun City has a five-foot warning tied to the high rating; someone using the county scheme also has the exclusion from its 30-foot first zone.

Form
grass
Mature height
~3 ft
Water need
high
Rated in
Austin, Texas; Georgetown, Texas
On this lot

1. Fire evidence and conditions

Fire evidence
Mixed evidence — location does not change the cited classification.
Placement evidence
2 source placement records; source schemes remain separate.
Evidence regions
Austin, Texas; Georgetown, Texas
Typed publication scope: 2 scopes across 2 cited fire sources
  • Firewise Plant Guide · Official scoped edition
    • Sun City Texas, Georgetown (TX footprint); partial normalized coverage · 2015-01-14

      The guide is authored for the Sun City Texas community in Georgetown. FireApproved publishes 142 exact owners only as community-level context. It is an archived HOA exhibit with unknown rating lineage, not a current statewide Texas source or an independent Tier 1 determination.

  • Firewise Landscaping (Travis County) · Official scoped edition
    • Travis County, Austin area (TX footprint); partial normalized coverage · 2024-01-16

      Texas A&M AgriLife Extension publishes this page through its Travis County horticulture program. FireApproved publishes 56 exact owners and retains the source's zone and warning conditions. This is county/Austin regional context, not a second statewide Texas table or site clearance.

2. Why this plant is relevant here

State distribution
Documented in AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, PR, SC, TN, TX, VA, WV.
Native range
Current cited native range in AL, AR, CT, DC, DE, FL, GA, IL, IN, KS, KY, LA, MA, MD, MO, MS, NC, NJ, NY, OH, OK, PA, PR, SC, TN, TX, VA, WV.
USDA hardiness
Documented minimum 7b; no upper limit is documented.

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.

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

28

exact source areas

Current introduced

0

exact source areas

Qualified

0

doubtful or extinct source rows

28 native source areas · World Checklist of Vascular Plants, version 16 v16, as of 2026-06-04
  • Alabama (AL)
  • Arkansas (AR)
  • Connecticut (CT)
  • District of Columbia (DC)
  • Delaware (DE)
  • Florida (FL)
  • Georgia (GA)
  • Illinois (IL)
  • Indiana (IN)
  • Kansas (KS)
  • Kentucky (KY)
  • Louisiana (LA)
  • Massachusetts (MA)
  • Maryland (MD)
  • Missouri (MO)
  • Mississippi (MS)
  • North Carolina (NC)
  • New Jersey (NJ)
  • New York (NY)
  • Ohio (OH)
  • Oklahoma (OK)
  • Pennsylvania (PA)
  • Puerto Rico (PR)
  • South Carolina (SC)
  • Tennessee (TN)
  • Texas (TX)
  • Virginia (VA)
  • 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.

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.

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 (2)

Corroboration (2 rows from 2 sources)
  • Firewise Landscaping (Travis County) — Texas A&M AgriLife Extension, Travis County · page modified 2024-01-16 · original source Corroboration Compilation lineage: unknown

    “Plants to Avoid for Zone 1 (within 30′ of Structure)”

    Listed as Muhly, Gulf — Muhlenbergia capillaris. The page says Zone 1 entries should be restricted to zones 2 or 3; all-zone entries are highly flammable due to volatile oils or growth habit.

  • Firewise Plant Guide — Sun City Texas Firewise Group · updated January 14, 2015 · original source Corroboration HOA exhibit lineage: unknown

    “high”

    The table rates Muhly, Gulf — Muhlenbergia capillaris high for flammability hazard, defined as the ease a plant can burn at high temperatures for a prolonged time.

Fire-resistant grasss instead

Last verified 2026-08-25. JSON (CC BY 4.0)

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Muhlenbergia capillaris (Muhly, Gulf). FireApproved. https://fireapproved.com/plants/muhlenbergia-capillaris/. Last verified 2026-08-25.