Slender Mountain-mint
Pycnanthemum tenuifolium
In the Carolinas and Georgia, found in bogs, wet meadows, moist to wet forests. Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition What its natural habitat tells you
Native to Arkansas. How scores work Is it native here?
Profile 100%
- Height
- 2–4 feet
- Spread
- 2–3 feet
- Light
- Full sun, Partial shade
- Soil moisture
- Somewhat dry to moist
Space about 2.5 ft apart from its recorded spread, about 16 per 100 sq ft. Enter your bed size for a count
Will it fit your yard?
At a glance
- Life cycle
- Perennial
- Bloom
- June to August
- Fruiting season
- September to October
Not yet recorded · Leaves
Recorded in 64 Arkansas counties.
Natural habitats
Places it grows wild. Not a planting requirement. Each habitat page lists the plants and wildlife also found there.
Open, wet, grassy or sedgy ground that is not a bog.
Forests on moist but not wet ground, such as rich slopes and ravines.
Also found with this plant
Wildlife whose habitat models include habitats this plant grows in, in Arkansas. Shared habitat, not food. 107 animals.
- Bank SwallowRiparia riparia
- Bell's VireoVireo bellii
- Bewick's WrenThryomanes bewickii
- Black-and-White WarblerMniotilta varia
- Black-crowned Night-heronNycticorax nycticorax
- Blue-gray GnatcatcherPolioptila caerulea
- Brown ThrasherToxostoma rufum
- Canada GooseBranta canadensis
- CanvasbackAythya valisineria
- Carolina WrenThryothorus ludovicianus
- Chimney SwiftChaetura pelagica
- Chipping SparrowSpizella passerina
- Cliff SwallowPetrochelidon pyrrhonota
- Common YellowthroatGeothlypis trichas
- Dark-eyed JuncoJunco hyemalis
- Eastern BluebirdSialia sialis
- Eastern PhoebeSayornis phoebe
- GadwallAnas strepera
- Golden EagleAquila chrysaetos
- Gray CatbirdDumetella carolinensis
- Great Blue HeronArdea herodias
- Great EgretArdea alba
- Green HeronButorides virescens
- Harris's SparrowZonotrichia querula
Who uses this plant?
4CaterpillarsGenus host records with ranges including AR
Genus host records with ranges including AR · Pycnanthemum
- Chloridea virescensTobacco Budworm Moth
- Eutrapela clematariaCurved-Tooth Geometer, Purplish Brown Looper
- Lintneria eremitusHermit Sphinx
- Chionodes pseudofondella
62BeesSoutheastern regional records
Southeastern regional records · Pycnanthemum
Individual names are not available yet.
Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
0Specialist beesPollen specialists
—BirdsRecorded genus food-resource interactions; not a state feeding claimNo records yet · Ants · Beetles · Flies · Adult butterflies / moths · Other wasps · Other insects
Plant details
- Family
- Lamiaceae
- Hardiness
- Zones 4a–8b
- Soil pH
- Acidic
- Flower color
- Pink or white
- Fruit begins
- September
- Fruit ends
- October
Safety has not been reviewed for this plant; check toxicity and thorns before planting.
Growing sources and scope
- Bloom · “June to August” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition · Carolinas and Georgia
- Flower color · “Pink or white” · NC Extension Plant Toolbox (ranked first; Lady Bird Johnson Wildflower Center differs)
- Fruit begins · “September” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; NC Extension Plant Toolbox differs) · Carolinas and Georgia
- Fruit ends · “October” · Weakley, Flora of the Southeastern United States (2025), Carolinas & Georgia edition (ranked first; NC Extension Plant Toolbox differs) · Carolinas and Georgia
- Hardiness · “Zones 4a–8b” · NC Extension Plant Toolbox (ranked first; Missouri Botanical Garden Plant Finder differs)
- Height · “2–4 feet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Missouri Botanical Garden Plant Finder differ)
- Life cycle · “Perennial” · NC Extension Plant Toolbox
- Light · “Full sun (6 or more hours of direct sunlight a day); Partial shade (direct sunlight only part of the day, 2-6 hours)” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Lady Bird Johnson Wildflower Center, Missouri Botanical Garden Plant Finder differ)
- Soil · “Moist; Occasionally dry; Occasionally wet” · NC Extension Plant Toolbox (ranked first; Tennessee Smart Yards, Virginia DCR Piedmont, Virginia DCR Coastal Plain, Lady Bird Johnson Wildflower Center, Missouri Botanical Garden Plant Finder differ)
- Soil pH · “Acidic” · NC Extension Plant Toolbox
- Spread · “2–3 feet” · NC Extension Plant Toolbox
Also known as
Narrow Leaf Mountain Mint; Slender Mountain mint
Conservation status
| Arkansas rank | SNR |
|---|---|
| Global rank | G5 |
| AR status | Not verified |
| Federal status | Not verified |
Will it fit your yard?
Check this plant against your county, sun and soil moisture. Conditions are checked in your browser.
Growing cautions
- Spreads aggressively. Can spread rapidly; best confined by hardscape. NC State Extension Plant Toolbox
For planning only; these do not change the score or Fit.
Sources
- Atlas of the Vascular Plants of Arkansas (2013)
- USDA PLANTS
- Vascular Plants of North Carolina (NC Natural Heritage Program)
- Weakley, Flora of the Southeastern United States (2025)
- Arkansas occurrence source
- Shropshire & Tallamy 2025, Lepidoptera of North America north of Mexico, ZooKeys 1261 (ODbL)
- Noori, Seltmann & Orr 2026, A curated and integrated dataset for exploring global bee-plant interactions (GloBI), Zenodo, CC BY 4.0
- Smith, Bachelder, Russell, Morales, Mosher & Seltmann 2024, Bee-Specialization-Modeling v0.6.1 (specialist host table compiled from J. Fowler's pollen specialist bee lists), Zenodo, CC BY 4.0
- Hurlbert, Olsen, Sawyer & Winner 2021, Avian Diet Database, Scientific Data 8: 260 (CC0)
- Narango, Tallamy & Shropshire 2020, Few keystone plant genera support the majority of Lepidoptera species, Nature Communications