Native plants · Kentucky

Native plants of Washington County

124 plant species are recorded as native to Kentucky in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Washington County by USDA PLANTS. 66 of them have growing records you can filter by light, moisture, height and estimated cold hardiness.

County summary · USDA PLANTS and Kew WCVP

Washington County, Kentucky

Native species
124 Typical Kentucky county: 426 (median of 120 counties)
Garden-ready natives
66 Typical Kentucky county: 190
Share by type (all 124 native species)
Percent of the 124 native species in each growth type
Tree 26% (32)
Shrub 5% (6)
Wildflower (forb) 38% (47)
Grass or grass-like 19% (24)
Vine 10% (13)
Fern 2% (2)

Wildflowers make up the largest share of the native list (38%), followed by trees (26%).

Recorded native ranges can include long-established populations that spread from gardens; check your state’s native plant society list for local guidance. How native status is decided.

ZIP codes mainly in this county fall in USDA hardiness zone 7a (2023 map).

The native plant list

Cold hardiness is estimated from each plant’s PLANTS minimum temperature. How we estimate it.

Garden-ready natives 66

Native species with PLANTS growing records (height, light, moisture, minimum temperature). “—” means PLANTS has no value.

Garden-ready native plants of Washington County, Kentucky
PlantType HeightLight Water useHardy to
American beech Fagus grandifolia Tree 80 ft Shade-tolerant Medium Zone 3a
American bellflower Campanulastrum americanum Wildflower (forb) 6 ft Shade-tolerant Medium Zone 12b
American bittersweet Celastrus scandens Vine 15 ft Shade-tolerant High Zone 3b
American plum Prunus americana Tree 24 ft Sun Medium Zone 3b
American sycamore Platanus occidentalis Tree 100 ft Sun–part shade High Zone 4a
Atlantic camas Camassia scilloides Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4b
bitternut hickory Carya cordiformis Tree 75 ft Sun Medium Zone 2b
black cherry Prunus serotina Tree 80 ft Sun Medium Zone 4a
black locust Robinia pseudoacacia Tree 60 ft Sun Medium Zone 3b
black oak Quercus velutina Tree 80 ft Sun–part shade Medium Zone 4a
black willow Salix nigra Tree 100 ft Sun High Zone 1b
blackeyed Susan Rudbeckia hirta Wildflower (forb) 1 ft Sun Medium Zone 5a
blackhaw Viburnum prunifolium Tree 16 ft Shade-tolerant Medium Zone 4a
blue mistflower Conoclinium coelestinum Wildflower (forb) 3.2 ft Shade-tolerant Medium Zone 6a
blunt broom sedge Carex tribuloides Grass or grass-like 3 ft Shade-tolerant Medium Zone 4b
boxelder Acer negundo Tree 60 ft Shade-tolerant Medium Zone 2b
broomsedge bluestem Andropogon virginicus Grass or grass-like 3 ft Sun Medium Zone 5b
Carolina elephantsfoot Elephantopus carolinianus Wildflower (forb) 2.7 ft Sun Medium Zone 6a
Carolina rose Rosa carolina Shrub 5 ft Sun–part shade Low Zone 3a
Chickasaw plum Prunus angustifolia Tree 12 ft Sun Medium Zone 4b
common blue violet Viola sororia Wildflower (forb) 4 in Sun–part shade High Zone 4b
common hackberry Celtis occidentalis Tree 60 ft Shade-tolerant Low Zone 2b
common persimmon Diospyros virginiana Tree 55 ft Shade-tolerant Medium Zone 5a
coralberry Symphoricarpos orbiculatus Shrub 2 ft Sun–part shade High Zone 5a
eastern narrowleaf sedge Carex amphibola Grass or grass-like 2 ft Shade-tolerant Medium Zone 7a
eastern redbud Cercis canadensis Tree 30 ft Shade-tolerant Low Zone 4b
eastern redcedar Juniperus virginiana Tree 50 ft Sun–part shade Low Zone 3a
eastern woodland sedge Carex blanda Grass or grass-like 2 ft Shade-tolerant High Zone 4b
fall panicgrass Panicum dichotomiflorum Grass or grass-like 3.3 ft Sun High Zone 3a
field paspalum Paspalum laeve Grass or grass-like 2.9 ft Sun–part shade Medium Zone 6a
fox sedge Carex vulpinoidea Grass or grass-like 3.2 ft Sun–part shade Medium Zone 3b
Frank's sedge Carex frankii Grass or grass-like 2 ft Shade-tolerant High Zone 5a
giant cane Arundinaria gigantea Shrub 25 ft Sun Medium Zone 5a
heartleaf peppervine Ampelopsis cordata Vine 2 ft Shade-tolerant Medium Zone 6b
honeylocust Gleditsia triacanthos Tree 70 ft Sun Medium Zone 3b
jewelweed Impatiens capensis Wildflower (forb) 4.9 ft Shade-tolerant Medium Zone 10b
Kentucky coffeetree Gymnocladus dioicus Tree 100 ft Sun Medium Zone 4a
limestone wild petunia Ruellia strepens Wildflower (forb) 3.6 ft Shade-tolerant Low Zone 6a
northern red oak Quercus rubra Tree 81 ft Sun–part shade Medium Zone 3b
Ohio buckeye Aesculus glabra Tree 68 ft Shade-tolerant Medium Zone 4a
pale touch-me-not Impatiens pallida Wildflower (forb) 8.2 ft Shade-tolerant Medium Zone 10b
prairie willow Salix humilis Shrub 10 ft Sun–part shade High Zone 3a
pride of Ohio Dodecatheon meadia Wildflower (forb) 2 ft Shade-tolerant Medium Zone 3b
purpletop tridens Tridens flavus Grass or grass-like 2.5 ft Sun Low Zone 5a
red mulberry Morus rubra Tree 70 ft Shade-tolerant Medium Zone 4a
rice cutgrass Leersia oryzoides Grass or grass-like 4.9 ft Sun High Zone 4a
riverbank grape Vitis riparia Vine 45 ft Sun–part shade Medium Zone 4a
roughleaf dogwood Cornus drummondii Tree 20 ft Sun–part shade Low Zone 4b
sandbar willow Salix interior Tree 30 ft Sun — Zone 1a
sassafras Sassafras albidum Tree 75 ft Sun Low Zone 4b
saw greenbrier Smilax bona-nox Vine 4 ft Shade-tolerant Medium Zone 5b
sawtooth sunflower Helianthus grosseserratus Wildflower (forb) 5 ft Sun Medium Zone 3a
shellbark hickory Carya laciniosa Tree 100 ft Shade-tolerant High Zone 5a
Short's sedge Carex shortiana Grass or grass-like 3 ft Sun–part shade High Zone 5b
silver maple Acer saccharinum Tree 90 ft Sun–part shade Medium Zone 2b
slippery elm Ulmus rubra Tree 85 ft Shade-tolerant High Zone 3a
steeplebush Spiraea tomentosa Shrub 4 ft Sun Low Zone 4a
strawcolored flatsedge Cyperus strigosus Grass or grass-like 3.2 ft Sun Medium Zone 4a
sugar maple Acer saccharum Tree 100 ft Shade-tolerant Medium Zone 2b
sugarberry Celtis laevigata Tree 80 ft Shade-tolerant High Zone 5a
sweet woodreed Cinna arundinacea Grass or grass-like 4.9 ft Shade-tolerant Low Zone 4a
trumpet creeper Campsis radicans Vine 2 ft Sun Low Zone 6a
trumpet honeysuckle Lonicera sempervirens Vine 16 ft Shade-tolerant Medium Zone 4a
Virginia creeper Parthenocissus quinquefolia Vine 1 ft Sun–part shade Low Zone 4b
white oak Quercus alba Tree 100 ft Sun–part shade Medium Zone 3a
wild blue phlox Phlox divaricata Wildflower (forb) 3 ft Sun–part shade Medium Zone 4a

Other native species recorded here 58

PLANTS has no growing records for these, so light, moisture, height and zone filters cannot include them. Many are wild species seldom sold by nurseries.

  • American bladdernut Staphylea trifolia
  • American hogpeanut Amphicarpaea bracteata
  • autumn coralroot Corallorhiza odontorhiza
  • bald spikerush Eleocharis erythropoda
  • beaked panicgrass Panicum anceps
  • bloodroot Sanguinaria canadensis
  • Blue Ridge sedge Carex lucorum
  • bristly greenbrier Smilax tamnoides
  • brown widelip orchid Liparis liliifolia
  • Canadian clearweed Pilea pumila
  • Canadian honewort Cryptotaenia canadensis
  • Canadian summer bluet Houstonia canadensis
  • Christmas fern Polystichum acrostichoides
  • common milkweed Asclepias syriaca
  • common yellow oxalis Oxalis stricta
  • dwarf larkspur Delphinium tricorne
  • early meadow-rue Thalictrum dioicum
  • eastern poison ivy Toxicodendron radicans
  • ebony spleenwort Asplenium platyneuron
  • great ragweed Ambrosia trifida
  • Greek valerian Polemonium reptans
  • green antelopehorn Asclepias viridis
  • hairyfruit chervil Chaerophyllum tainturieri
  • hairyseed paspalum Paspalum pubiflorum
  • Heller's cudweed Pseudognaphalium helleri
  • honeyvine Cynanchum laeve
  • hooded arrowhead Sagittaria calycina
  • hortulan plum Prunus hortulana
  • James' sedge Carex jamesii
  • lesser yellow lady's slipper Cypripedium parviflorum
  • longleaf groundcherry Physalis longifolia
  • mayapple Podophyllum peltatum
  • Miami mist Phacelia purshii
  • narrowleaf vervain Verbena simplex
  • New England aster Symphyotrichum novae-angliae
  • oak mistletoe Phoradendron leucarpum
  • oneseed bur cucumber Sicyos angulatus
  • Pennsylvania sedge Carex pensylvanica
  • poorjoe Diodia teres
  • prairie broomweed Amphiachyris dracunculoides
  • rabbit-tobacco Pseudognaphalium obtusifolium
  • ram's horn Proboscidea louisianica
  • rosy sedge Carex rosea
  • rough barnyardgrass Echinochloa muricata
  • roundleaf ragwort Packera obovata
  • rue anemone Thalictrum thalictroides
  • shortstalk false bindweed Calystegia silvatica
  • slender yellow woodsorrel Oxalis dillenii
  • smoothsheath sedge Carex laevivaginata
  • spiked crested coralroot Hexalectris spicata
  • spreading sedge Carex laxiculmis
  • striped cream violet Viola striata
  • twinleaf Jeffersonia diphylla
  • Virginia pepperweed Lepidium virginicum
  • white crownbeard Verbesina virginica
  • white snakeroot Ageratina altissima
  • whitetinge sedge Carex albicans
  • wild goose plum Prunus munsoniana

Compared with Kentucky

The typical county is the median of the 120 Kentucky counties with PLANTS county records; the statewide figure counts every species native anywhere in the state. More species is not better or worse: counties differ in size, habitat and how thoroughly they have been surveyed.

Native species counts, Washington County and Kentucky
MeasureWashington CountyTypical countyStatewide
Native species 124 426 1,719
Garden-ready natives 66 190 568
Tree 32 — 181
Shrub 6 — 73
Wildflower (forb) 47 — 931
Grass or grass-like 24 — 376
Vine 13 — 85
Fern 2 — 73

Neighboring counties

Counties that share a ZIP code with Washington County.

Look up another ZIP

Matches your ZIP to the county it mostly lies in, then lists the plants recorded as native to your state (Kew’s World Checklist and USDA PLANTS) and recorded in that county by USDA PLANTS.

Source & data date

Source
USDA NRCS PLANTS Database: county distribution records, native status and plant characteristics. CC0 (public domain dedication, per the data.gov catalog record).
Kew’s World Checklist of Vascular Plants (WCVP): native or introduced status by state. CC BY 3.0.
USGS US-RIIS (ver. 2.0): species listed as introduced are excluded. CC0.
Citation
USDA, NRCS. 2026. The PLANTS Database (https://plants.usda.gov, 11/04/2026). National Plant Data Team, Greensboro, NC USA.
Govaerts R. (ed.) (2026). WCVP: World Checklist of Vascular Plants. Facilitated by the Royal Botanic Gardens, Kew. Data file dated 2026-06-04, http://sftp.kew.org/pub/data-repositories/WCVP/ (retrieved 2026-11-04). Paper: Govaerts R. et al. (2021) The World Checklist of Vascular Plants, a continuously updated resource for exploring global plant diversity. Scientific Data 8, 215.
Data date
Retrieved from PLANTS on November 4, 2026; WCVP data file dated June 4, 2026.
Zones
USDA Plant Hardiness Zone Map (2023) ZIP table: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed November 3, 2026. Plant zones on this site are our estimate, not the official map.
Scope
Washington County (county FIPS 21229), Kentucky. 124 native species from PLANTS county distribution records; garden-ready = species with a PLANTS characteristics record.
Method
A species is listed when it is recorded as native to the state in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in the county by USDA PLANTS. Species PLANTS labels both native and introduced are listed separately. Full method · All sources

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