Native plants · Ohio

Native plants of Washington County

580 plant species are recorded as native to Ohio in Kew’s World Checklist of Vascular Plants and USDA PLANTS, and recorded in Washington County by USDA PLANTS. 222 of them have growing records you can filter by light, moisture, height and estimated cold hardiness. 4 more species are listed as both native and introduced and kept in a separate section.

County summary · USDA PLANTS and Kew WCVP

Washington County, Ohio

Native species
580 Typical Ohio county: 559 (median of 88 counties)
Garden-ready natives
222 Typical Ohio county: 241
Share by type (all 580 native species)
Percent of the 580 native species in each growth type
Tree 13% (75)
Shrub 5% (28)
Wildflower (forb) 64% (369)
Grass or grass-like 8% (46)
Vine 5% (31)
Fern 5% (31)

Wildflowers make up the largest share of the native list (64%), followed by trees (13%).

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 6b (2023 map).

The native plant list

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

Garden-ready natives 222

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

Garden-ready native plants of Washington County, Ohio
PlantType HeightLight Water useHardy to
Allegheny blackberry Rubus allegheniensis Shrub 6 ft Shade-tolerant Medium Zone 4b
alternateleaf dogwood Cornus alternifolia Tree 25 ft Shade-tolerant Medium Zone 2b
American basswood Tilia americana Tree 100 ft Shade-tolerant Medium Zone 2b
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 chestnut Castanea dentata Tree 115 ft Sun Medium Zone 4a
American elm Ulmus americana Tree 120 ft Sun–part shade High Zone 2b
American hazelnut Corylus americana Shrub 10 ft Sun–part shade Medium Zone 4a
American hornbeam Carpinus caroliniana Tree 30 ft Shade-tolerant Medium Zone 4a
American plum Prunus americana Tree 24 ft Sun Medium Zone 3b
American pokeweed Phytolacca americana Wildflower (forb) 7.3 ft Shade-tolerant Medium Zone 4a
American sycamore Platanus occidentalis Tree 100 ft Sun–part shade High Zone 4a
American water horehound Lycopus americanus Wildflower (forb) 1.8 ft Shade-tolerant High Zone 3b
American water plantain Alisma subcordatum Wildflower (forb) 6 in Sun High Zone 4a
American water-willow Justicia americana Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4b
American witchhazel Hamamelis virginiana Tree 20 ft Sun–part shade Medium Zone 4b
arrowleaf tearthumb Polygonum sagittatum Vine 1 ft Sun Medium Zone 6a
bigleaf aster Eurybia macrophylla Wildflower (forb) 4.6 ft Shade-tolerant Medium Zone 4b
bigtooth aspen Populus grandidentata Tree 65 ft Sun High Zone 3a
bitternut hickory Carya cordiformis Tree 75 ft Sun Medium Zone 2b
black cherry Prunus serotina Tree 80 ft Sun Medium Zone 4a
black huckleberry Gaylussacia baccata Shrub 4 ft Shade-tolerant Low Zone 4a
black maple Acer nigrum Tree 100 ft Shade-tolerant Medium Zone 2b
black oak Quercus velutina Tree 80 ft Sun–part shade Medium Zone 4a
black raspberry Rubus occidentalis Shrub 6 ft Sun–part shade Medium Zone 4b
black walnut Juglans nigra Tree 100 ft Sun High Zone 4b
black willow Salix nigra Tree 100 ft Sun High Zone 1b
blackeyed Susan Rudbeckia hirta Wildflower (forb) 1 ft Sun Medium Zone 5a
blackgum Nyssa sylvatica Tree 95 ft Shade-tolerant Medium Zone 5b
blackhaw Viburnum prunifolium Tree 16 ft Shade-tolerant Medium Zone 4a
blue cohosh Caulophyllum thalictroides Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4a
blue mistflower Conoclinium coelestinum Wildflower (forb) 3.2 ft Shade-tolerant Medium Zone 6a
bluntleaf bedstraw Galium obtusum Wildflower (forb) 1.5 ft Shade-tolerant High Zone 4a
boxelder Acer negundo Tree 60 ft Shade-tolerant Medium Zone 2b
bristly buttercup Ranunculus hispidus Wildflower (forb) 2.5 ft Shade-tolerant Medium Zone 4a
broadleaf arrowhead Sagittaria latifolia Wildflower (forb) 4.9 ft Sun High Zone 4a
broadleaf cattail Typha latifolia Wildflower (forb) 5 ft Sun–part shade High Zone 3b
broomsedge bluestem Andropogon virginicus Grass or grass-like 3 ft Sun Medium Zone 5b
bulbous bittercress Cardamine bulbosa Wildflower (forb) 1.4 ft Shade-tolerant Medium Zone 4a
burningbush Euonymus atropurpureus Tree 10 ft Shade-tolerant Low —
butterfly milkweed Asclepias tuberosa Wildflower (forb) 2 ft Sun Low Zone 4a
calico aster Symphyotrichum lateriflorum Wildflower (forb) 4 ft Sun Medium Zone 4a
Canada germander Teucrium canadense Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
Canada goldenrod Solidago canadensis Wildflower (forb) 3.5 ft Sun Medium Zone 3a
Canadian horseweed Conyza canadensis Wildflower (forb) 5 ft Sun Medium Zone 12b
Canadian lousewort Pedicularis canadensis Wildflower (forb) 1.3 ft Shade-tolerant Medium Zone 3a
cardinalflower Lobelia cardinalis Wildflower (forb) 5.9 ft Shade-tolerant Low Zone 4a
Carolina rose Rosa carolina Shrub 5 ft Sun–part shade Low Zone 3a
cat greenbrier Smilax glauca Vine 1 ft Shade-tolerant Medium Zone 6a
chestnut oak Quercus montana Tree 73 ft Sun–part shade Medium Zone 4a
chinquapin oak Quercus muehlenbergii Tree 70 ft Sun Medium Zone 4a
climbing rose Rosa setigera Vine 16 ft Sun Low Zone 6a
closed bottle gentian Gentiana andrewsii Wildflower (forb) 2 ft Sun–part shade Medium Zone 3b
common blue violet Viola sororia Wildflower (forb) 4 in Sun–part shade High Zone 4b
common blue wood aster Symphyotrichum cordifolium Wildflower (forb) 5 ft Sun Low Zone 3b
common cowparsnip Heracleum maximum Wildflower (forb) 8 ft Sun High Zone 3b
common evening primrose Oenothera biennis Wildflower (forb) 5 ft Sun Medium Zone 4b
common goldstar Hypoxis hirsuta Wildflower (forb) 10 in Sun–part shade Medium Zone 4a
common hackberry Celtis occidentalis Tree 60 ft Shade-tolerant Low Zone 2b
common hoptree Ptelea trifoliata Tree 25 ft Sun–part shade High Zone 4a
common ninebark Physocarpus opulifolius Shrub 10 ft Sun Low Zone 4a
common persimmon Diospyros virginiana Tree 55 ft Shade-tolerant Medium Zone 5a
common rush Juncus effusus Grass or grass-like 6.6 ft Sun Medium Zone 3b
common selfheal Prunella vulgaris Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 3b
common serviceberry Amelanchier arborea Tree 36 ft Shade-tolerant Medium Zone 2b
common sneezeweed Helenium autumnale Wildflower (forb) 4.9 ft Sun Medium Zone 3a
common snowberry Symphoricarpos albus Shrub 3 ft Sun Medium Zone 3b
composite dropseed Sporobolus compositus Grass or grass-like 3 ft Sun Low Zone 3b
coralberry Symphoricarpos orbiculatus Shrub 2 ft Sun–part shade High Zone 5a
crested woodfern Dryopteris cristata Fern 1.6 ft Shade-tolerant High Zone 4a
crimsoneyed rosemallow Hibiscus moscheutos Wildflower (forb) 6.6 ft Sun High Zone 6a
crookedstem aster Symphyotrichum prenanthoides Wildflower (forb) 4 ft Sun Medium Zone 3b
cucumber tree Magnolia acuminata Tree 100 ft Sun–part shade High Zone 5b
cup plant Silphium perfoliatum Wildflower (forb) 6 ft Sun–part shade — Zone 2b
deerberry Vaccinium stamineum Shrub 16 ft Shade-tolerant Low Zone 5a
deertongue Dichanthelium clandestinum Grass or grass-like 2 ft Sun Low Zone 4a
devil's darning needles Clematis virginiana Vine 15 ft Sun–part shade Medium Zone 3b
ditch stonecrop Penthorum sedoides Wildflower (forb) 2.6 ft Sun–part shade Medium Zone 4b
dotted smartweed Polygonum punctatum Wildflower (forb) 3.2 ft Sun Medium Zone 10b
downy yellow violet Viola pubescens Wildflower (forb) 1.3 ft Shade-tolerant Medium Zone 4a
dwarf St. Johnswort Hypericum mutilum Wildflower (forb) 2.6 ft Sun–part shade Medium Zone 5a
eastern cottonwood Populus deltoides Tree 190 ft Sun High Zone 3a
eastern redbud Cercis canadensis Tree 30 ft Shade-tolerant Low Zone 4b
eastern teaberry Gaultheria procumbens Shrub 6 in Shade-tolerant Low Zone 4a
fall panicgrass Panicum dichotomiflorum Grass or grass-like 3.3 ft Sun High Zone 3a
false daisy Eclipta prostrata Wildflower (forb) 3.2 ft Sun–part shade Medium Zone 10b
field horsetail Equisetum arvense Fern 11 in Sun–part shade High Zone 3a
flowering dogwood Cornus florida Tree 30 ft Shade-tolerant Low Zone 4b
fowl mannagrass Glyceria striata Grass or grass-like 5.7 ft Shade-tolerant Medium Zone 3b
foxglove beardtongue Penstemon digitalis Wildflower (forb) 4 ft Shade-tolerant Low Zone 3b
frost grape Vitis vulpina Vine 83 ft Sun–part shade Medium Zone 5a
giant goldenrod Solidago gigantea Wildflower (forb) 8.2 ft Sun–part shade Medium Zone 4a
gray goldenrod Solidago nemoralis Wildflower (forb) 2 ft Sun Medium Zone 4a
great St. Johnswort Hypericum ascyron Wildflower (forb) 5 ft Sun Medium Zone 5a
green ash Fraxinus pennsylvanica Tree 80 ft Shade-tolerant Medium Zone 2b
green bulrush Scirpus atrovirens Grass or grass-like 5.9 ft Sun Medium Zone 2a
groundnut Apios americana Vine 1 ft Shade-tolerant Medium Zone 5a
hairy lespedeza Lespedeza hirta Wildflower (forb) 6 ft Sun Low Zone 6a
hairy white oldfield aster Symphyotrichum pilosum Wildflower (forb) 3 ft Shade-tolerant Medium Zone 4a
harvestlice Agrimonia parviflora Wildflower (forb) 6 ft Sun–part shade High Zone 4a
hazel alder Alnus serrulata Tree 30 ft Sun High Zone 5a
honeylocust Gleditsia triacanthos Tree 70 ft Sun Medium Zone 3b
hophornbeam Ostrya virginiana Tree 45 ft Shade-tolerant Low Zone 3b
Indiangrass Sorghastrum nutans Grass or grass-like 6 ft Sun Medium Zone 3b
Indianhemp Apocynum cannabinum Wildflower (forb) 3.3 ft Sun–part shade High Zone 3a
interrupted fern Osmunda claytoniana Fern 4 ft Shade-tolerant High Zone 3b
Jack in the pulpit Arisaema triphyllum Wildflower (forb) 1.5 ft Shade-tolerant High Zone 5b
limestone bittercress Cardamine douglassii Wildflower (forb) 1 ft Shade-tolerant High Zone 4a
limestone wild petunia Ruellia strepens Wildflower (forb) 3.6 ft Shade-tolerant Low Zone 6a
little bluestem Schizachyrium scoparium Grass or grass-like 3 ft Sun Low Zone 3b
littleleaf buttercup Ranunculus abortivus Wildflower (forb) 2.8 ft Shade-tolerant Medium Zone 3a
mapleleaf viburnum Viburnum acerifolium Shrub 6 ft Shade-tolerant Medium Zone 4b
marsh seedbox Ludwigia palustris Wildflower (forb) 2 in Sun High Zone 4a
Maryland senna Senna marilandica Wildflower (forb) 6.6 ft Sun–part shade Low Zone 5b
Missouri River willow Salix eriocephala Tree 52 ft Shade-tolerant High Zone 3b
mockernut hickory Carya tomentosa Tree 85 ft Sun–part shade Medium Zone 4a
mountain laurel Kalmia latifolia Tree 6 ft Shade-tolerant Low Zone 5a
narrowleaf blue-eyed grass Sisyrinchium angustifolium Wildflower (forb) 2 ft Sun–part shade Medium Zone 7a
narrowleaf evening primrose Oenothera fruticosa Wildflower (forb) 3.3 ft Shade-tolerant High Zone 4a
needle spikerush Eleocharis acicularis Grass or grass-like 8 in Sun Medium Zone 5a
New Jersey tea Ceanothus americanus Shrub 3 ft Shade-tolerant Low Zone 4b
nimblewill Muhlenbergia schreberi Grass or grass-like 3.2 ft Shade-tolerant Low Zone 4a
nodding fescue Festuca subverticillata Grass or grass-like 3 ft Sun–part shade Medium Zone 3a
northern catalpa Catalpa speciosa Tree 60 ft Sun Low Zone 3b
northern maidenhair Adiantum pedatum Fern 1.3 ft Shade-tolerant Medium Zone 3b
northern red oak Quercus rubra Tree 81 ft Sun–part shade Medium Zone 3b
northern spicebush Lindera benzoin Tree 12 ft Sun–part shade Medium Zone 5a
Ohio buckeye Aesculus glabra Tree 68 ft Shade-tolerant Medium Zone 4a
orangegrass Hypericum gentianoides Wildflower (forb) 2 ft Sun–part shade Low Zone 12a
pale touch-me-not Impatiens pallida Wildflower (forb) 8.2 ft Shade-tolerant Medium Zone 10b
pawpaw Asimina triloba Tree 25 ft Shade-tolerant Medium Zone 4b
Pennsylvania bittercress Cardamine pensylvanica Wildflower (forb) 1.5 ft Shade-tolerant Medium Zone 4a
Pennsylvania smartweed Polygonum pensylvanicum Wildflower (forb) 3.9 ft Sun Medium Zone 10b
perplexed ticktrefoil Desmodium perplexum Wildflower (forb) 4 ft Sun–part shade Medium Zone 4a
Philadelphia fleabane Erigeron philadelphicus Wildflower (forb) 2.8 ft Sun–part shade Medium Zone 4b
pin oak Quercus palustris Tree 100 ft Sun High Zone 4a
pinnate prairie coneflower Ratibida pinnata Wildflower (forb) 4 ft Sun Medium Zone 3b
post oak Quercus stellata Tree 60 ft Sun Medium Zone 4a
prairie cordgrass Spartina pectinata Grass or grass-like 8 ft Sun High Zone 3b
prairie fleabane Erigeron strigosus Wildflower (forb) 3 ft Sun Medium Zone 4b
prairie willow Salix humilis Shrub 10 ft Sun–part shade High Zone 3a
purple lovegrass Eragrostis spectabilis Grass or grass-like 11 in Sun Low Zone 3a
purpleflowering raspberry Rubus odoratus Shrub 5 ft Sun–part shade Medium Zone 3b
purpleleaf willowherb Epilobium coloratum Wildflower (forb) 3.3 ft Sun–part shade High Zone 4a
purpletop tridens Tridens flavus Grass or grass-like 2.5 ft Sun Low Zone 5a
quaking aspen Populus tremuloides Tree 65 ft Sun High Zone 1a
red maple Acer rubrum Tree 68 ft Sun–part shade High Zone 2b
red mulberry Morus rubra Tree 70 ft Shade-tolerant Medium Zone 4a
reed canarygrass Phalaris arundinacea Grass or grass-like 5 ft Sun High Zone 3b
rice cutgrass Leersia oryzoides Grass or grass-like 4.9 ft Sun High Zone 4a
ridged yellow flax Linum striatum Wildflower (forb) 2.6 ft Shade-tolerant Medium Zone 3a
river birch Betula nigra Tree 70 ft Sun High Zone 4a
riverbank grape Vitis riparia Vine 45 ft Sun–part shade Medium Zone 4a
riverbank wildrye Elymus riparius Grass or grass-like 4.5 ft Shade-tolerant High Zone 4a
rough avens Geum laciniatum Wildflower (forb) 3.1 ft Sun–part shade Medium Zone 5a
roughfruit amaranth Amaranthus tuberculatus Wildflower (forb) 6.6 ft Sun High Zone 4a
roughleaf dogwood Cornus drummondii Tree 20 ft Sun–part shade Low Zone 4b
roundleaf greenbrier Smilax rotundifolia Vine 1 ft Sun Medium Zone 4a
sandbar willow Salix interior Tree 30 ft Sun — Zone 1a
sassafras Sassafras albidum Tree 75 ft Sun Low Zone 4b
scarlet oak Quercus coccinea Tree 70 ft Sun Medium Zone 4b
shagbark hickory Carya ovata Tree 75 ft Sun–part shade Medium Zone 3a
sharpwing monkeyflower Mimulus alatus Wildflower (forb) 2.3 ft Shade-tolerant High Zone 5a
shellbark hickory Carya laciniosa Tree 100 ft Shade-tolerant High Zone 5a
shingle oak Quercus imbricaria Tree 45 ft Sun Medium Zone 5b
shrubby St. Johnswort Hypericum prolificum Shrub 3.2 ft Sun–part shade High Zone 4b
silky dogwood Cornus amomum Shrub 10 ft Sun–part shade High Zone 3b
silver maple Acer saccharinum Tree 90 ft Sun–part shade Medium Zone 2b
skunk cabbage Symplocarpus foetidus Wildflower (forb) 2 ft Shade-tolerant High Zone 4a
slippery elm Ulmus rubra Tree 85 ft Shade-tolerant High Zone 3a
smallspike false nettle Boehmeria cylindrica Wildflower (forb) 3.9 ft Shade-tolerant Medium Zone 4a
smooth blue aster Symphyotrichum laeve Wildflower (forb) 4 ft Sun Medium Zone 3a
smooth hedgenettle Stachys tenuifolia Wildflower (forb) 25 ft Shade-tolerant High Zone 4a
smooth sumac Rhus glabra Tree 12 ft Sun Low Zone 4a
softstem bulrush Schoenoplectus tabernaemontani Grass or grass-like 9 ft Sun High Zone 3b
sourwood Oxydendrum arboreum Tree 35 ft Shade-tolerant Low Zone 6a
southern arrowwood Viburnum dentatum Tree 8 ft Sun–part shade — Zone 5a
spotted St. Johnswort Hypericum punctatum Wildflower (forb) 3 ft Shade-tolerant Medium Zone 4a
spring avens Geum vernum Wildflower (forb) 1.6 ft Shade-tolerant Medium Zone 5b
staghorn sumac Rhus typhina Tree 30 ft Sun–part shade Low Zone 4a
stalkless yellowcress Rorippa sessiliflora Wildflower (forb) 1.5 ft Sun–part shade High Zone 12b
stiff marsh bedstraw Galium tinctorium Wildflower (forb) 10 in Shade-tolerant High 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
summer grape Vitis aestivalis Vine 30 ft Shade-tolerant Medium Zone 5a
swamp milkweed Asclepias incarnata Wildflower (forb) 4.9 ft Sun High Zone 3b
swamp rose Rosa palustris Shrub 8.2 ft Shade-tolerant Medium Zone 4a
swamp smartweed Polygonum hydropiperoides Wildflower (forb) — Sun Medium Zone 10b
swamp sunflower Helianthus angustifolius Wildflower (forb) 5.6 ft Sun–part shade Medium Zone 4b
sweet woodreed Cinna arundinacea Grass or grass-like 4.9 ft Shade-tolerant Low Zone 4a
sweetflag Acorus americanus Wildflower (forb) 3.9 ft Sun High Zone 3b
switchgrass Panicum virgatum Grass or grass-like 5 ft Sun Medium Zone 3a
teal lovegrass Eragrostis hypnoides Grass or grass-like 4 in Sun High Zone 3b
threelobe beggarticks Bidens tripartita Wildflower (forb) 3.5 ft Sun–part shade High Zone 12a
trumpet creeper Campsis radicans Vine 2 ft Sun Low Zone 6a
trumpet honeysuckle Lonicera sempervirens Vine 16 ft Shade-tolerant Medium Zone 4a
trumpetweed Eutrochium fistulosum Wildflower (forb) 6 ft Sun–part shade High Zone 4b
tuliptree Liriodendron tulipifera Tree 120 ft Sun Medium Zone 5b
twoheaded water-starwort Callitriche heterophylla Wildflower (forb) — Sun High Zone 4a
valley redstem Ammannia coccinea Wildflower (forb) 1.6 ft Sun Medium Zone 3b
Virginia bluebells Mertensia virginica Wildflower (forb) 2.3 ft Shade-tolerant High Zone 4b
Virginia creeper Parthenocissus quinquefolia Vine 1 ft Sun–part shade Low Zone 4b
Virginia threeseed mercury Acalypha virginica Wildflower (forb) 3 ft Sun–part shade Medium Zone 10b
Virginia water horehound Lycopus virginicus Wildflower (forb) 4 ft Shade-tolerant High Zone 4a
Virginia wildrye Elymus virginicus Grass or grass-like 2.5 ft Shade-tolerant Medium Zone 4b
water knotweed Polygonum amphibium Wildflower (forb) 1 in Sun High Zone 5a
white ash Fraxinus americana Tree 90 ft Sun High Zone 4a
white avens Geum canadense Wildflower (forb) 3.9 ft Shade-tolerant Medium Zone 4a
white oak Quercus alba Tree 100 ft Sun–part shade Medium Zone 3a
white panicle aster Symphyotrichum lanceolatum Wildflower (forb) 6 ft Sun–part shade High Zone 3b
whitegrass Leersia virginica Grass or grass-like 3.9 ft Shade-tolerant Medium Zone 3a
wild bergamot Monarda fistulosa Wildflower (forb) 4.9 ft Sun–part shade High Zone 4a
wild blue phlox Phlox divaricata Wildflower (forb) 3 ft Sun–part shade Medium Zone 4a
winged sumac Rhus copallinum Tree 8 ft Sun Low Zone 4b
wirestem muhly Muhlenbergia frondosa Grass or grass-like 2 ft Shade-tolerant Medium Zone 3b
woolgrass Scirpus cyperinus Grass or grass-like 4.9 ft Sun–part shade High Zone 4a
wreath goldenrod Solidago caesia Wildflower (forb) 3 ft Sun–part shade Medium Zone 4b
yellow buckeye Aesculus flava Tree 65 ft Shade-tolerant High Zone 5b
yellow fumewort Corydalis flavula Wildflower (forb) 1.5 ft Sun–part shade Medium Zone 5b
yellow passionflower Passiflora lutea Vine 16 ft Shade-tolerant Low Zone 5a
zigzag goldenrod Solidago flexicaulis Wildflower (forb) 3 ft Sun–part shade Medium Zone 5b

Other native species recorded here 358

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.

  • Adam and Eve Aplectrum hyemale
  • Allegheny Mountain buttercup Ranunculus allegheniensis
  • allegheny vine Adlumia fungosa
  • amberique-bean Strophostyles helvola
  • American alumroot Heuchera americana
  • American burnweed Erechtites hieraciifolius
  • American cancer-root Conopholis americana
  • American columbo Frasera caroliniensis
  • American false pennyroyal Hedeoma pulegioides
  • American ginseng Panax quinquefolius
  • American hogpeanut Amphicarpaea bracteata
  • American ipecac Gillenia stipulata
  • American lopseed Phryma leptostachya
  • American spikenard Aralia racemosa
  • American stoneseed Lithospermum latifolium
  • American wintergreen Pyrola americana
  • anglestem primrose-willow Ludwigia leptocarpa
  • Appalachian polypody Polypodium appalachianum
  • arrowleaf violet Viola sagittata
  • bay forget-me-not Myosotis laxa
  • bearded shorthusk Brachyelytrum erectum
  • beechdrops Epifagus virginiana
  • beggarslice Hackelia virginiana
  • biennial beeblossom Oenothera gaura
  • big devils beggartick Bidens vulgata
  • bigbract verbena Verbena bracteata
  • black baneberry Actaea racemosa
  • blackseed plantain Plantago rugelii
  • blisterwort Ranunculus recurvatus
  • bloodroot Sanguinaria canadensis
  • Blue Ridge blueberry Vaccinium pallidum
  • blue sedge Carex glaucodea
  • blue skullcap Scutellaria lateriflora
  • blue waxweed Cuphea viscosissima
  • bluntleaf waterleaf Hydrophyllum canadense
  • bluntlobe cliff fern Woodsia obtusa
  • bog yellowcress Rorippa palustris
  • Bradley's spleenwort Asplenium bradleyi
  • bride's feathers Aruncus dioicus
  • bristly greenbrier Smilax tamnoides
  • broad beechfern Phegopteris hexagonoptera
  • brown widelip orchid Liparis liliifolia
  • bulblet bladderfern Cystopteris bulbifera
  • Canada lettuce Lactuca canadensis
  • Canada lily Lilium canadense
  • Canada mayflower Maianthemum canadense
  • Canada toadflax Nuttallanthus canadensis
  • Canadian blacksnakeroot Sanicula canadensis
  • Canadian clearweed Pilea pumila
  • Canadian honewort Cryptotaenia canadensis
  • Canadian white violet Viola canadensis
  • Canadian wildginger Asarum canadense
  • Canadian woodnettle Laportea canadensis
  • Carolina horsenettle Solanum carolinense
  • Carolina vetch Vicia caroliniana
  • carpenter's square Scrophularia marilandica
  • Christmas fern Polystichum acrostichoides
  • churchmouse threeawn Aristida dichotoma
  • clammy groundcherry Physalis heterophylla
  • clasping milkweed Asclepias amplexicaulis
  • clasping Venus' looking-glass Triodanis perfoliata
  • Clayton's sweetroot Osmorhiza claytonii
  • clustered blacksnakeroot Sanicula odorata
  • common boneset Eupatorium perfoliatum
  • common cinquefoil Potentilla simplex
  • common dittany Cunila origanoides
  • common milkweed Asclepias syriaca
  • common moonseed Menispermum canadense
  • common pricklyash Zanthoxylum americanum
  • common yellow oxalis Oxalis stricta
  • cornel-leaf whitetop Doellingeria infirma
  • cream avens Geum virginianum
  • creeping phlox Phlox stolonifera
  • crinkleroot Cardamine diphylla
  • Culver's root Veronicastrum virginicum
  • curlytop knotweed Polygonum lapathifolium
  • cutleaf evening primrose Oenothera laciniata
  • cutleaf grapefern Botrychium dissectum
  • cutleaf toothwort Cardamine concatenata
  • cypress panicgrass Dichanthelium dichotomum
  • densetuft hairsedge Bulbostylis capillaris
  • dogtooth violet Erythronium americanum
  • dotted hawthorn Crataegus punctata
  • downy lobelia Lobelia puberula
  • downy rattlesnake plantain Goodyera pubescens
  • downy yellow false foxglove Aureolaria virginica
  • dutchman's breeches Dicentra cucullaria
  • dwarf cinquefoil Potentilla canadensis
  • dwarf larkspur Delphinium tricorne
  • early blue violet Viola ×palmata
  • early goldenrod Solidago juncea
  • early saxifrage Saxifraga virginiensis
  • earth loosestrife Lysimachia terrestris
  • eastern bottlebrush grass Elymus hystrix
  • eastern greenviolet Hybanthus concolor
  • eastern hayscented fern Dennstaedtia punctilobula
  • eastern leatherwood Dirca palustris
  • eastern poison ivy Toxicodendron radicans
  • eastern prickly gooseberry Ribes cynosbati
  • eastern waterleaf Hydrophyllum virginianum
  • ebony spleenwort Asplenium platyneuron
  • Elliott's bluestem Andropogon gyrans
  • elmleaf goldenrod Solidago ulmifolia
  • erect knotweed Polygonum erectum
  • eyebane Chamaesyce nutans
  • fairywand Chamaelirium luteum
  • fall phlox Phlox paniculata
  • false mermaidweed Floerkea proserpinacoides
  • fan clubmoss Lycopodium digitatum
  • feathery false lily of the valley Maianthemum racemosum
  • fernleaf yellow false foxglove Aureolaria pedicularia
  • field pansy Viola bicolor
  • fire pink Silene virginica
  • fireberry hawthorn Crataegus chrysocarpa
  • floating primrose-willow Ludwigia peploides
  • flowering spurge Euphorbia corollata
  • fluxweed Trichostema brachiatum
  • forked bluecurls Trichostema dichotomum
  • forkleaf toothwort Cardamine dissecta
  • fourleaf milkweed Asclepias quadrifolia
  • fragrant bedstraw Galium triflorum
  • fringed loosestrife Lysimachia ciliata
  • Gattinger's panicgrass Panicum gattingeri
  • giant ironweed Vernonia gigantea
  • giant sunflower Helianthus giganteus
  • glade fern Diplazium pycnocarpon
  • golden zizia Zizia aurea
  • Goldie's woodfern Dryopteris goldieana
  • great blue lobelia Lobelia siphilitica
  • great ragweed Ambrosia trifida
  • great waterleaf Hydrophyllum appendiculatum
  • great yellow woodsorrel Oxalis grandis
  • Greek valerian Polemonium reptans
  • green carpetweed Mollugo verticillata
  • green dragon Arisaema dracontium
  • green fringed orchid Platanthera lacera
  • green milkweed Asclepias hirtella
  • hairy angelica Angelica venenosa
  • hairy beardtongue Penstemon hirsutus
  • hairy bedstraw Galium pilosum
  • hairy forked nailwort Paronychia fastigiata
  • hairy pagoda-plant Blephilia hirsuta
  • hairy Solomon's seal Polygonatum pubescens
  • hairy sunflower Helianthus hirsutus
  • hairy wildrye Elymus villosus
  • hairy woodland brome Bromus pubescens
  • hairyjoint meadowparsnip Thaspium barbinode
  • harbinger of spring Erigenia bulbosa
  • hazel dodder Cuscuta coryli
  • heartleaf four o'clock Mirabilis nyctaginea
  • heartleaf hedgenettle Stachys cordata
  • hemlock waterparsnip Sium suave
  • hoary mountainmint Pycnanthemum incanum
  • hoary puccoon Lithospermum canescens
  • hoary skullcap Scutellaria incana
  • hoary ticktrefoil Desmodium canescens
  • honeyvine Cynanchum laeve
  • husk tomato Physalis pubescens
  • hybrid oak Quercus ×leana
  • hybrid oak Quercus ×saulii
  • Illinois pinweed Lechea racemulosa
  • Indian cucumber Medeola virginiana
  • Indian-tobacco Lobelia inflata
  • Indianpipe Monotropa uniflora
  • intermediate woodfern Dryopteris intermedia
  • jumpseed Polygonum virginianum
  • lanceleaf fogfruit Phyla lanceolata
  • lanceleaf wild licorice Galium lanceolatum
  • large whorled pogonia Isotria verticillata
  • largebracted plantain Plantago aristata
  • largeflower bellwort Uvularia grandiflora
  • largefruit blacksnakeroot Sanicula trifoliata
  • largeleaf waterleaf Hydrophyllum macrophyllum
  • largeseed forget-me-not Myosotis macrosperma
  • lesser yellow lady's slipper Cypripedium parviflorum
  • licorice bedstraw Galium circaezans
  • little evening primrose Oenothera perennis
  • lizard's tail Saururus cernuus
  • lobed spleenwort Asplenium pinnatifidum
  • longleaf groundcherry Physalis longifolia
  • longleaf summer bluet Houstonia longifolia
  • longspur violet Viola rostrata
  • longstyle sweetroot Osmorhiza longistylis
  • low false bindweed Calystegia spithamaea
  • lowland bladderfern Cystopteris protrusa
  • Lowrie's blue wood aster Symphyotrichum lowrieanum
  • man of the earth Ipomoea pandurata
  • marginal woodfern Dryopteris marginalis
  • mayapple Podophyllum peltatum
  • meadow zizia Zizia aptera
  • Miami mist Phacelia purshii
  • moccasin flower Cypripedium acaule
  • mullein foxglove Dasistoma macrophylla
  • narrowleaf bluecurls Trichostema setaceum
  • narrowleaf mountainmint Pycnanthemum tenuifolium
  • neckweed Veronica peregrina
  • New England aster Symphyotrichum novae-angliae
  • nits and lice Hypericum drummondii
  • nodding wakerobin Trillium flexipes
  • northern dewberry Rubus flagellaris
  • northern slender lady's tresses Spiranthes lacera
  • Norwegian cinquefoil Potentilla norvegica
  • oak mistletoe Phoradendron leucarpum
  • obedient plant Physostegia virginiana
  • oneflowered broomrape Orobanche uniflora
  • oneseed bur cucumber Sicyos angulatus
  • orange coneflower Rudbeckia fulgida
  • orangefruit horse-gentian Triosteum aurantiacum
  • pale beardtongue Penstemon pallidus
  • pale dock Rumex altissimus
  • pale Indian plantain Arnoglossum atriplicifolium
  • palespike lobelia Lobelia spicata
  • partridgeberry Mitchella repens
  • pasture thistle Cirsium pumilum
  • pear hawthorn Crataegus calpodendron
  • Pennsylvania pellitory Parietaria pensylvanica
  • perfoliate bellwort Uvularia perfoliata
  • pinesap Monotropa hypopitys
  • plains snakecotton Froelichia floridana
  • pleatleaf knotweed Polygonum tenue
  • poke milkweed Asclepias exaltata
  • poverty dropseed Sporobolus vaginiflorus
  • poverty oatgrass Danthonia spicata
  • prairie tea Croton monanthogynus
  • prairie threeawn Aristida oligantha
  • prostrate ticktrefoil Desmodium rotundifolium
  • purple meadowparsnip Thaspium trifoliatum
  • purple milkweed Asclepias purpurascens
  • purple milkwort Polygala sanguinea
  • purplestem angelica Angelica atropurpurea
  • queendevil Hieracium gronovii
  • rabbit-tobacco Pseudognaphalium obtusifolium
  • rattlesnakeweed Hieracium venosum
  • red columbine Aquilegia canadensis
  • red hickory Carya ovalis
  • red trillium Trillium erectum
  • richweed Collinsonia canadensis
  • robin's plantain Erigeron pulchellus
  • rock buttercup Ranunculus micranthus
  • rock polypody Polypodium virginianum
  • rosepink Sabatia angularis
  • rough barnyardgrass Echinochloa muricata
  • rough hawkweed Hieracium scabrum
  • roundleaf thoroughwort Eupatorium rotundifolium
  • rue anemone Thalictrum thalictroides
  • running serviceberry Amelanchier stolonifera
  • sand violet Viola affinis
  • scaldweed Cuscuta gronovii
  • seedbox Ludwigia alternifolia
  • sensitive fern Onoclea sensibilis
  • sensitive partridge pea Chamaecrista nictitans
  • shining clubmoss Huperzia lucidula
  • Short's rockcress Arabis shortii
  • showy goldenrod Solidago erecta
  • showy goldenrod Solidago speciosa
  • showy orchid Galearis spectabilis
  • shrubby lespedeza Lespedeza frutescens
  • sicklepod Arabis canadensis
  • silver false spleenwort Deparia acrostichoides
  • singlehead pussytoes Antennaria solitaria
  • sixweeks fescue Vulpia octoflora
  • sleepy silene Silene antirrhina
  • slender toothwort Cardamine angustata
  • slender yellow woodsorrel Oxalis dillenii
  • slenderleaf false foxglove Agalinis tenuifolia
  • small woodland sunflower Helianthus microcephalus
  • smooth false buttonweed Spermacoce glabra
  • smooth forked nailwort Paronychia canadensis
  • smooth oxeye Heliopsis helianthoides
  • smooth rockcress Arabis laevigata
  • smooth Solomon's seal Polygonatum biflorum
  • smooth white oldfield aster Symphyotrichum racemosum
  • smooth yellow false foxglove Aureolaria flava
  • southern woodland violet Viola hirsutula
  • spinulose woodfern Dryopteris carthusiana
  • spleenwort Asplenium ×ebenoides
  • spoonleaf purple everlasting Gamochaeta purpurea
  • spotted geranium Geranium maculatum
  • spotted sandmat Chamaesyce maculata
  • spotted water hemlock Cicuta maculata
  • spreading chervil Chaerophyllum procumbens
  • spring blue eyed Mary Collinsia verna
  • spring coralroot Corallorhiza wisteriana
  • St. Andrew's cross Hypericum hypericoides
  • sticky catchfly Silene caroliniana
  • stiff yellow flax Linum medium
  • striped cream violet Viola striata
  • striped prince's pine Chimaphila maculata
  • swamp dock Rumex verticillatus
  • swamp verbena Verbena hastata
  • sweet white violet Viola blanda
  • sweetscented joe pye weed Eutrochium purpureum
  • tall blazing star Liatris aspera
  • tall blue lettuce Lactuca biennis
  • tall rattlesnakeroot Prenanthes altissima
  • tall thimbleweed Anemone virginiana
  • tall thistle Cirsium altissimum
  • tall tickseed Coreopsis tripteris
  • Tennessee bladderfern Cystopteris tennesseensis
  • thin paspalum Paspalum setaceum
  • thinleaf sunflower Helianthus decapetalus
  • three-lobe violet Viola triloba
  • tinted woodland spurge Euphorbia commutata
  • toadshade Trillium sessile
  • toothed spurge Euphorbia dentata
  • trailing arbutus Epigaea repens
  • tufted lovegrass Eragrostis pectinacea
  • twoleaf miterwort Mitella diphylla
  • upland boneset Eupatorium sessilifolium
  • violet lespedeza Lespedeza violacea
  • violet woodsorrel Oxalis violacea
  • Virginia buttonweed Diodia virginiana
  • Virginia groundcherry Physalis virginiana
  • Virginia pennywort Obolaria virginica
  • Virginia pepperweed Lepidium virginicum
  • Virginia plantain Plantago virginica
  • Virginia snakeroot Aristolochia serpentaria
  • Virginia springbeauty Claytonia virginica
  • Virginia strawberry Fragaria virginiana
  • Virginia tephrosia Tephrosia virginiana
  • walking fern Asplenium rhizophyllum
  • wavyleaf aster Symphyotrichum undulatum
  • waxyfruit hawthorn Crataegus pruinosa
  • weft fern Trichomanes intricatum
  • white baneberry Actaea pachypoda
  • white fawnlily Erythronium albidum
  • white goldenrod Solidago bicolor
  • white snakeroot Ageratina altissima
  • white trillium Trillium grandiflorum
  • white turtlehead Chelone glabra
  • white vervain Verbena urticifolia
  • white wood aster Eurybia divaricata
  • whiteflower leafcup Polymnia canadensis
  • whitestar Ipomoea lacunosa
  • whitetinge sedge Carex albicans
  • whorled milkwort Polygala ambigua
  • whorled milkwort Polygala verticillata
  • whorled mountainmint Pycnanthemum verticillatum
  • whorled rosinweed Silphium trifoliatum
  • whorled yellow loosestrife Lysimachia quadrifolia
  • widowsfrill Silene stellata
  • wild comfrey Cynoglossum virginianum
  • wild cucumber Echinocystis lobata
  • wild hydrangea Hydrangea arborescens
  • wild yam Dioscorea villosa
  • winged lythrum Lythrum alatum
  • wingstem Verbesina alternifolia
  • witchgrass Panicum capillare
  • woodfern Dryopteris ×neowherryi
  • woodfern Dryopteris ×triploidea
  • woodland flax Linum virginianum
  • woodland lettuce Lactuca floridana
  • woodland stonecrop Sedum ternatum
  • woodland sunflower Helianthus divaricatus
  • yellow pimpernel Taenidia integerrima
  • yellow screwstem Bartonia virginica
  • yellowfruit horse-gentian Triosteum angustifolium
  • yellowseed false pimpernel Lindernia dubia
Also listed as native and introduced here 4

PLANTS labels these species both native and introduced in this state: some forms are native and others were brought in from elsewhere. Most gardeners should choose plants from the main list.

  • American red raspberryRubus idaeus
  • annual ragweedAmbrosia artemisiifolia
  • climbing false buckwheatPolygonum scandens
  • hedge false bindweedCalystegia sepium

Compared with Ohio

The typical county is the median of the 88 Ohio 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 Ohio
MeasureWashington CountyTypical countyStatewide
Native species 580 559 1,740
Garden-ready natives 222 241 594
Tree 75 — 160
Shrub 28 — 94
Wildflower (forb) 369 — 939
Grass or grass-like 46 — 400
Vine 31 — 62
Fern 31 — 85

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 39167), Ohio. 580 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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