A listing of common shade perennials for slightly acidic sites, native to Pennsylvania
Note: we have included soil pH ranges with this set because many species are at one margin or the other. The last column, Cty, refers to whether the plant is native to Monroe County, Pennsylvania. All plants listed are native to Pennsylvania.
| Latin | Common | Indic | Notes | Cty |
|---|---|---|---|---|
| Actaea racemosa | Black cohosh | NI | Moist rich humus soil open shade, common. 5-6 pH | yes |
| Adiantum pedatum | Maidenhair fern | FAC- | Rich, moist woods, esp northern exposure, throughout; 6-7 pH | yes |
| Agastache scrophulariifolia | Purple Giant Hyssop | NI | Shade tolerant; this is more of a sun to part sun plant. Scattered, 5-8 pH | yes |
| Allium canadense | Canada garlic | FACU | Glades, bluffs, open woods, prairies, disturbed sites; common. 6.5-7.0 pH | yes |
| Allium tricoccum | Wild leek | FACU+ | Rich open woods, common, 6-7 pH | no |
| Aquilegia canadensis | American columbine | FAC | Dry, rocky open woods and sun, rich or poor soil, throughout; 6-7 pH best | yes |
| Anemone canadensis | Canada anemone | FACW | Open woods, thickets, roadsides in many kinds of soil, aggressive spreader | no |
| Anemone virginiana | Thimbleweed | FACU | Dry open woods and slopes, poor acid to neutral soils. pH 5.5-7.0 | yes |
| Arisaema dracontium | Giant Jacks | FACW | Shade, moist rich soil, common, 6-7 pH | no |
| Aristolochia macrophylla | Dutchman's pipe | NI | Vine; moist well drained soil, shade to part shade; scattered, 6-7 pH | no |
| Aruncus dioicus | Goat's-beard | FACU | Bluffs, wooded slopes, rocky and moist woodlands, ravines, western counties, 5-6 pH | no |
| Asarum canadense | Wild ginger | FACU | Rich, moist woods, most counties; 4.5-6 pH | yes |
| Asplenium platyneuron | Ebony spleenwort | FACU | Gravelly and stony soils, light shade, throughout, 5-7.5 pH | yes |
| Asplenium rhizophyllum | Walking fern | NI | Shaded limestone, moss-covered outcrops, throughout except NW, 6.5-7.5 pH | yes |
| Asplenium trichmanes | Maidenhair spleenwort | NI | Moist, shady, ledges, south and east counties, 4.5-7.5 pH | yes |
| Athyrium filix-femina var. angustum | Lady fern | FAC | Humus rich soil, sun to shade, throughout, 4.5 - 6.5 pH | yes |
| Athyrium filix-femina var. asplenioides | Southern lady fern | FAC | Humus rich soil, sun to shade, mostly S and E, 4.5-6.5 pH | yes |
| Caltha palustris var palustris (also var flabellifolia, more rare) | Marsh marigold | OBL | Soaking wet woods, streambanks, meadows with muddy humus rich soil, throughout, 5-7 pH | yes |
| Camassia scilloides | Atlantic camas | FAC | Full sun to full shade, rich moist soil, far western counties, 6-7 pH | no |
| Campanula rotundifolia | Harebell | FACU | Dry rocky woods, mostly eastern counties, 6-7 pH | yes |
| Cardamine concatenata | Cutleaf toothwort | FACU | Dappled sunlight before the trees leaf out; it prefers moist to mesic conditions and a rich loamy soil with decaying leaves, common; 5-7.5 pH | no |
| Cardamine diphylla | Two Leave toothwort | FACU | Mostly north and west counties, moist woods, 6.5 to 7.5 pH | no |
| Cardamine douglassii | Douglass bittercress | FACW+ | Low or swampy woodlands, mostly western counties, 6.5 - 7.5 pH | no |
| Caulophyllum thalictroides | Blue cohosh | NI | Shade, humus rich soil, common, 4.5-7 pH | yes |
| Chamaelirium luteum | Fairywand, devils bit | FAC | Wet open woods, humus rich soil, common, 5-6 pH | yes |
| Chrysopsis mariana | Maryland Golden Aster | UPL | Dry sandy woods, mostly SE, 5-7 pH | no |
| Claytonia virginica | Spring Beauty | FAC | Moist open woods, throughout, 5-6 pH | yes |
| Clematis occidentalis (verticillaris) | Rock clematis | NI | Climbing vine, cool, humus-rich soil, mostly SE, 6-7 pH | yes |
| Clintonia umbellulata | Speckled beadlily | NI | Moist rich humus soil, western counties, 5-6 pH | no |
| Collinsia verna | Blue eyed mary | FAC- | Dappled sunlight to light shade, moist to mesic conditions, and a rich loamy soil, SW counties, 6-7 pH | no |
| Collinsonia canadensis | Citronella horsebalm | FAC+ | Rich woodlands, ravines and wooded slopes, often in limestone soils, throughout, 6-7 pH | yes |
| Corallorhiza maculata | spotted coral root | FACU | moist woods, throughout, 6-6.5 pH | yes |
| Corallorhiza striata | hooded coralroot | UPL | cool woods and around swamp margins, western US, 6-7 pH | no |
| Corydalis aurea | Golden corydalis | NI | Sandy loam to clay, central counties, 6-7 pH | no |
| Cymophyllus fraseri | Fraser's sedge | NI | Light shade, moist rich soil, found only Somerset County | no |
| Cypripedium calceolus var. pubescens | Large yellow ladyslipper | FAC+ | Common in moist, rich deciduous woods, bogs, swamps, 6.5-7 pH | yes |
| Cypripedium candidum | Small white ladyslipper | OBL | Humus-rich to mucky soils, extirpated; Lancaster Cty, 6.5-7 pH | no |
| Cypripedium reginae | Showy ladyslipper | FACW | Moist, humus-rich soil open shade; threatened; scattered, 5-7 pH | no |
| Cystopteris bulbifera | Berry bladderfern | FAC | Shaded limestone-rich cliffs and outcrops, common, 6.5-7.5 pH | yes |
| Cystopteris fragilis | Brittle bladderfern | FACU | Humus rich moist soil, tending to higher pH; common, 6.5 to 7.5 pH | no |
| Delphinium tricorne | Dwarf larkspur | NI | Open shade to shade moist; SW counties, 5-7 pH | no |
| Deparia acrostichoides | Silvery glade fern | FAC | Rich, moist woods, throughout, 5.5-7 pH | yes |
| Dicentra canadensis | Squirrel corn | NI | Sandy loam, moderate moisture, common, 6-7 pH | yes |
| Dicentra cucullaria | Dutchman's breeches | NI | Sandy loam, moderate moisture, common, 6-7 pH | no |
| Dicentra eximia | Fringed bleedingheart | NI | Rich, damp woods, mulch oak; very scattered, endangered, 4.5 to 5.5 pH | yes |
| Disporum lanuginosum | Hairy fairybells, Yellow mandarin | NI | Moist humus-rich soil, mostly western counties, 5-6 pH | no |
| Dodecatheon meadia | Shooting star | FACU | Open woods moderately rich soil, south central counties, 4.5-6 pH | no |
| Doellingeria umbellata var. umbellata | Flat-top aster | FACW | Moist open woods, thickets and fields, throughout, 5-6 pH | yes |
| Dryopteris goldiana | Goldie's woodfern | FAC+ | Deep, moist, humus rich woods, common; 6.5 -7 pH | yes |
| Dryopteris intermedia | Common woodfern | FACU | Moist shady rocky woods, humus rich, throughout; 4.5-7.5 pH | yes |
| Elephantopus carolinianus | Elephants foot | FAC | Sun to part shade, moist, SE counties, endangered; 5-7 pH | no |
| Epilobium angustifolium | FIreweed | FAC | Sun (quickly invades burned out forests); 6-7 pH | yes |
| Erigenia bulbosa | Harbinger of spring | NI | Rich shaded woods, at or near the base of slopes, alluvial soils along streams and in valleys, alluvial thickets, at the base of rocky bluffs, scattered in western counties; 6.5-7 pH | no |
| Erythronium albidum | White fawnlily | FACU | Low woods, wooded slopes, ravines, mostly S and W, pH 5-6 | no |
| Erythronium americanum | Trout lily | NI | Shade to part shade moist, throughout, pH 5-6 | yes |
| Eupatorium rugosum | White snakeroot | NI | Rich, rocky woods, base of wooded bluffs, rock outcrops, thickets (poisonous, contains barium sulfate), throughout; 6-7 pH | yes |
| Euphorbia corollata | Wild spurge | NI | All but northern counties in Prairies, pastures, open woods, glades, roadsides, railroads, 6-7.7 pH | no |
| Eurybia divaricata | White wood aster | NI | Moist open woods, throughout, 5-7 pH | yes |
| Eurybia divaricata | White wood aster | NI | Shade to part shade dry-moist, throughout, 5-7 pH | yes |
| Eurybia macrophylla | Aster, Big leaved | NI | Shade to part shade moist, throughout, 6-7 pH | yes |
| Eurybia spectabilis | Showy aster | NI | Dry sandy woods and clearings, SE counties, 6-7 pH | no |
| Galearis spectabilis | Showy orchid | NI | Rich moist woods in leafmold, common; 5.6 -6.5 pH | yes |
| Galium boreale | northern bedstraw | FACU | Streambanks, open woods, rocky, moist rich soil, common, 6-7.5 pH | no |
| Galium odoratum | Sweet woodruff | NI | Average, medium wet to wet, well-drained soils in part shade to full shade; four southern counties; 5-6 pH | no |
| Geranium maculatum | Wild geranium | FACU | Rich open woods, damp shaded roadsides, throughout; 4-5 pH | yes |
| Geranium robertianum | Herbrobert geranium | NI | Rich open woods, semishaded hillsides, mostly NE, 6-7 pH | yes |
| Helianthus divaricatus | Woodland Sunflower | NI | Dry woods and thickets, throughout; 5-7 pH | yes |
| Hepatica nobilis var. obtusa | Roundlobe hepatica | NI | Dry rocky slopes, humus rich acid soil, throughout; 4.5 to 6 pH | yes |
| Heuchera americana | American alumroot | NI | Well-drained humus rich soil in dry rocky woods and banks, southern, western, eastern counties, 5-6 pH | yes |
| Hydrastis canadensis | Goldenseal | NI | Moist humus rich north slope soil, mostly southern and western counties; 6-7 pH | no |
| Hydrophyllum appendiculatum | Waterleaf | NI | Moist rich woods, slopes, base of bluffs, thickets, wooded valleys; SW counties, 7 pH preferred | no |
| Hydrophyllum virginianum | Virginia waterleaf | FAC | Moist rich woods, throughout, 6-7 pH | yes |
| Jeffersonia diphylla | Twinleaf | NI | Rich damp open woods, SW, SE counties, 4.5-7 pH | no |
| Linum virginianum | Woodland flax | FACU | Cool, shaded spots in open woods and clearings; common; 6-7 pH | yes |
| Luzula bulbosa | Woodrush | FACU | Dry upland forests, mesic upland forests in ravines, upland prairies, NW, SE; 4.5-6.5 pH | no |
| Luzula echinata | Common woodrush | FACU | Dry, open to semi-open situations, often in sandy, acid soil: open oak woods, clearings, and fields, throughout; 4.5-6.5 pH | yes |
| Matteuccia struthiopteris | Ostrich fern, see Pteretis nodulosa, Matteuccia pensylvanica; | FACW | Light shade to sun, rich humus on rocky stream banks, forming extensive colonies. 5.0 to 7.5 pH | yes |
| Meehania cordata | Meehan Mint | NI | Moist open woods, SW counties, 6-7 pH | no |
| Mertensia virginica | Virginia Bluebells | FACW | Moist rich woods, bottoms, low slopes, somewhat common; 6-7 pH | no |
| Mitella diphylla | Bishops cap, Mitrewort | FACU | Cool shaded wet spot with rich soil in open woods and stream banks, throughout; 5-7 pH but prefers 6 pH | yes |
| Monarda didyma | Beebalm | FAC+ | Rich moist soils, full sun to light shade, all but central counties; 5.5-6.5 pH | yes |
| Onoclea sensibilis | Sensitive fern | FACW | Muddy soil in wet meadows, thickets, woods, streambanks, swamps and bogs, 4.5 to 7.5 pH | yes |
| Oxalis violacea | Woodsorrel | NI | open woods, stream banks, S and E; 6 - 6.5 pH | yes |
| Pachysandra procumbens | Allegheny Spurge | B | Well drained humus in sun to (preferably) light shade, SE counties, 5-6.5 pH | no |
| Panax quinquefolius | American ginseng | NI | Humus-rich soil, preferably oak leafmold, wooded slopes, moist ground, scattered; 4.5 to 6 pH | yes |
| Panax trifolius | Dwarf ginseng | NI | Moist woods and thickets, throughout, 5.6 to 7.5 pH | yes |
| Pedicularis canadensis | Forest lousewort; Wood bettany | FACU | Open dry woods and grasslands, throughout, 5.5 to 7 pH, attracts rabbits | yes |
| Pellaea atropurpurea | Purple cliffbrake | NI | Partial shade to full sun. Crevices of limestone and dolomite outcrops, bluffs, boulders, and sinkholes. Sometimes in dry soils adjacent to dolomite glades, mostly toward SE; 6.5 to 7.5 pH | yes |
| Phlox divaricata ssp. divaricata | Woodland phlox | FACU | Lighltly shaded, humus rich soil in open woods in all but NE counties, 6-7 pH | no |
| Phlox divaricata ssp. laphamii | Woodland phlox | FACU | Lighltly shaded, humus rich soil in open woods in NE counties, 6-7 pH | yes |
| Phlox stolonifera | Creeping Phlox | NI | Partial shade and moist soil that is rich in organic matter, mostly western counties, 5-6 pH | no |
| Podophyllum peltatum | Mayapple | NI | Damp open maple woods and clearings, throughout, 4-7 pH but prefers slightly acidic | yes |
| Polemonium reptans | Jacobs ladder | FACU | Rich low woods, thickets at the base of bluffs, moist ground near streams, common, 6-7 pH | no |
| Polygonatum biflorum var. commutatum | great solomons seal | FACU | moist shady woodlands and thickets, stream banks, bottomlands, 4.0 to 7.5 pH, but does best in 5.0 to 6.5 pH | yes |
| Polygonatum pubescens | solomons seal | NI | prefers a fertile humus rich moisture-retentive well-drained soil in cool shade or semi-shade, throughout; 4.0 to 7.5 pH, but does best in 5.0 to 6.5 pH | yes |
| Polystichum acrostichoides | Christmas fern | NI | organically rich, dry to medium wet, well-drained soils, throughout, 4.5 to 7 pH | yes |
| Polystichum braunii | Braun hollyfern | NI | Cool, moist, shaded places in boreal forests and northern deciduous woods; also rocky slopes and moist cliffs; endangered, 4 NE counties; 6 -7.5 pH | no |
| Rudbeckia laciniata | Cutleaf coneflower | FACW | Moist woods and thickets, throughout; 5-7 pH | yes |
| Ruellia strepens | Limestone hardy petunia | FAC | Partial to full shade moist; threatened; southern counties, 5.6 to 8.5 pH | no |
| Sanguinaria canadensis | Bloodroot | UPL: | Open woods, rich moist soil , throughout, 6-7 pH | yes |
| Sedum ternatum | Stonecrop | NI | central and southern counties, 5-6 pH | yes |
| Silene stellata | Starry campion | NI | rich soil, open woods, all but northernmost counties, 5-6 pH | yes |
| Silene virginica | Firepink | NI | rich soil, open woods, western counties, 5-7 pH | no |
| Silphium trifoliatum var. trifoliatum | Whorled rosinweed | NI | S and W Counties, moist woods, 6-7 pH | no |
| Smilacina racemosa | Solomons plume, false solomons seal | NI | rich moist deep humus soil, throughout, 5-6 pH | yes |
| Solidago caesia | wreath goldenrod | FACU | dry woods, thickets, clearings, 5-6 pH | yes |
| Solidago odora | fragrant goldenrod | NI | dry soil light shade, mostly eastern counties, 5-6 pH | yes |
| Solidago speciosa | noble goldenrod | NI | average, dry to medium wet, well-drained soil in full sun. Tolerates poor, dry soils, scattered, 5-6 pH | yes |
| Stylophorum diphyllum | celandine poppy | NI | rich moist, partial to full shade, esp streambanks and ravines, Butler and Chester counties, 6-7 pH | no |
| Symphyotrichum lateriflorum | Calico aster | FACW- | Open woods and thickets no special care, 4-6 pH | yes |
| Symplocarpus foetidus | skunk cabbage | OBL | mucky soils, bogs, wet banks, wet woods, swamps, throughout, 5-7 pH | yes |
| Thalictrum dioicum | Early meadow rue | FAC | throughout in rich, dry woodlands, esp. north-facing slopes, 5-6 pH | yes |
| Thalictrum thalictroides | rue anemone | FACU- | rich moist humus soil, throughout except for most northern counties, 4-6 pH | yes |
| Thelypteris palustris | Marshfern | FACW+ | Soft, rich, muddy soil, full sun okay, throughout; 4.5 - 6.5 pH | yes |
| Tiarella cordifolia | foamflower | FAC- | rich moist woods (wet=fatal, should not dry out), throughout; 5-7 pH | yes |
| Tradescantia virginiana | spiderlily | FACU | Humus-rich soil in shaded spots, sesic to dry upland forests, shaded ledges of bluffs, open rocky woods, glade edges, railroads; scattered, mostly S, 6-7 pH | no |
| Trautvetteria caroliniensis | Tassel rue | FACW- | SW counties, moist soils, rare, North-facing limestone bluffs, 5.5-6.5 pH | no |
| Tricyrtis hirta | Toad lily | NI | Average, medium wet to wet, well-drained soil in part to full shade. Prefers moist, humusy, slightly acidic soils in part shade. Soil must not be allowed to dry out. - Montomery Cty, 5.5-6.5 pH. Native of Japan? | no |
| Trillium erectum | Red Trillium, Wake Robin (Maroon) | FACU- | Part shade moist, throughout; see also var Album; 4.5 to 6 pH with optimum of 5.0 pH | yes |
| Trillium grandiflorum | White or snow trillium | NI | Moist humus rich soil in open woods and thickets, mostly western counties, 6 to 7 pH with an optimum of 6 pH | no |
| Trillium nivale | Dwarf trillium | NI | Mesic upland forests on steep, open, north-facing slopes above streams and rivers - on limestone and chert substrates, SW counties; 7 pH | no |
| Triphora trianthophora | Drooping pogonia | UPL | Humus rich loam, deciduous woods, SE counties; optimum 6-7 pH | no |
| Uvularia grandiflora | Big merrybells | NI | Rich woods in limestone soil, northern and western counties, 6-7 pH | no |
| Uvularia perfoliata | Bellwort | FACU | Throughout in moist woods, 5-6 pH | yes |
| Uvularia sessilifolia | little merrybells | FACU- | Moist sandy to clay loam, throughout, 5-6 pH | yes |
| Viola canadensis | Canada violet | NI | Moist humus, shade to light shade, all but SE counties, 5 to 6.5 pH | yes |
| Viola labradorica | American Dog Violet | FACW | Shade to light shade, moist soils, throughout 5-6.5 pH | yes |
| viola rostrata | Long spur violet | Shade to part shade moist soil, 7-8 pH | ||
| Viola sororia freckles | Freckled Violet | Part shade to part sun, moist, 7-8 pH | no | |
| Waldsteinia fragarioides | Barren strawberry | NI | Cool, humus-rich rocky woods and slopes, common, 5-6 pH | yes |
| Woodsia obtusa | common woodsia | NI | Well drained humus on shaded cliffs and rocky slopes, especially in limy or neutral soil; all but NW counties, 6-7.5 pH | yes |