This store requires javascript to be enabled for some features to work correctly.

The one-time event Fall '23 clearance sale is starting soon. More great native plants for less. Check back soon for all the details.
Profile

Herbaceous perennials

Support Ontario's natural biodiversity with Ontario native plants grown source-identified wildtype seed. Explore Ontario wildflowers, grasses, sedges, rushes and more. 

Plants may be available for pickup or delivery. Please let us know any preferences in your order notes via wholesale.stwilliamsnursery.com.

Want more options? Check out our contract growing services. 

Filter by

Availability
0 selected Reset
Product type
0 selected Reset
Format
0 selected Reset
Sun
0 selected Reset
Water
0 selected Reset
Zone
0 selected Reset
Clear all
Clear all
Arrow Leaved Aster Ontario native plants
Arrow-Leaved Aster - Symphyotrichum urophyllum | Pots ready spring to fall
Fresh cutbacks
Big Bluestem seed heads
Big Bluestem - Andropogon gerardii | Pots ready spring to fall
Fresh cutbacks
Shade house bloodroot in bloom
Bloodroot - Sanguinaria canadensis | Pots ready spring to fall
Blue-eyed grass
Blue-Eyed Grass - Sisyrinchium montanum | Pots ready spring & fall
Broad Leaved Sedge - Ontario native
Broad-Leaved Sedge - Carex platyphylla | Pots ready spring to fall
Browneyed Susans wildlfowers
Brown-Eyed Susan;Black-Eyed Susan - Rudbeckia hirta | Pots ready spring to fall
Monarch host plant Butterflyweed blooms closeup
Butterfly Milkweed;Butterflyweed - Asclepias tuberosa | Pots ready spring to fall
Fresh cutbacks
Canadian Milkvetch Closeup (credits Flickr - Matt Lavin)
Canadian Milkvetch - Astragalus canadensis | Pots ready spring to fall
Common Milkweed in flower
Common Milkweed - Asclepias syriaca | Pots ready spring to fall
Culver's Root in nursery fields
Culver's Root - Veronicastrum virginicum | Pots ready spring to fall
Fresh cutbacks
Butterfly on blazingstar
Dense Blazing Star;Spiked Blazing Star - Liatris spicata | Pots ready spring to fall
Dwarf Blazingstar at St. Williams Nursery
Dwarf Blazing Star;Cylindrical Blazing Star - Liatris cylindracea | Pots ready spring to fall
Flat topped Ontario native aster
Flat-Topped Aster - Doellingeria umbellata | Pots ready spring to fall
Foamflower closeup
Foamflower - Tiarella cordifolia | Pots ready spring-summer
Foxglove Beardtongue flowers in St Williams greenhouse
Foxglove Beard-Tongue - Penstemon digitalis | Pots ready spring to fall
Closeup golden alexanders
Golden Alexanders - Zizia aurea | Pots ready spring to fall
Grass of Parnassus
Grass-Of-Parnassus - Parnassia glauca | Pots ready spring to fall
Closeup blue lobelia
Great Blue Lobelia - Lobelia siphilitica | Pots ready spring to fall
Green-Headed Coneflower visited by Bee
Greenheaded Coneflower;Cut-Leaved Coneflower - Rudbeckia laciniata | Pots ready spring to fall
Grey-Headed Coneflower;Yellow Coneflower - Ratibida pinnata | Pots ready spring to fall
Bee on Hairy Beardtongue flowers
Hairy Beard-Tongue - Penstemon hirsutus | Pots ready spring to fall
Heath Aster pots at St Williams Nursery
Heath Aster - Symphyotrichum ericoides | Pots ready spring to fall
Indian Grass - Sorghastrum nutans | Pots ready spring to fall
Little Bluestem grasses in fall
Little Bluestem - Schizachyrium scoparium | Pots ready spring to fall
Michigan Lily blooming in greenhouse
Michigan Lily - Lilium michiganense | Pots ready spring to fall
Bee on wildflower in fall
New England Aster - Symphyotrichum novae-angliae | Pots ready spring to fall
Wild Blue Flag Iris - Ontario native plants
Northern Wild Blue Flag - Iris versicolor | Pots ready spring to fall
Closeup of flowerhead
Obedient Plant;False Dragonhead - Physostegia virginiana | Pots ready spring to fall
Oswego tea or bee balm up close
Oswego Tea - Monarda didyma | Pots ready spring to fall
Field rows of Pale Purple Coneflower
Pale Coneflower - Echinacea pallida | Pots ready spring to fall
Sunflower closeup
Pale-Leaved Sunflower - Helianthus strumosus | Pots ready spring to fall
Pearly Everlasting wildflower 4in potted plants
Pearly Everlasting - Anaphalis margaritacea | Pots ready spring to fall
Plantain Leaved Sedge
Plantain-Leaved Sedge - Carex plantaginea | Pots ready spring-summer
Closeup Prairie Dock Ontario native wildflowers
Prairie Dock - Silphium terebinthinaceum | Pots ready spring to fall
Closeup prairie smoke
Prairie Smoke - Geum triflorum | Pots ready spring to fall
Geums - Purple Avens - Ontario native
Purple Avens;Purple Geum - Geum rivale | Pots ready spring to fall
Sky Blue Aster Ontario wildflowers
Sky Blue Aster - Symphyotrichum oolentangiense | Pots ready spring to fall
Smooth Aster blooms
Smooth Aster - Symphyotrichum laeve | Pots ready spring to fall
Southern or pale blue flag iris (Iris virginica)
Southern;Pale Flag Iris - Iris virginica | Pots ready spring to fall
Joe Pye Butterfly
Spotted Joe-Pye Weed - Eupatorium maculatum | Pots ready spring to fall
Bee visiting milkweed
Swamp Milkweed; Rose Milkweed - Asclepias incarnata | Pots ready spring to fall
Sweet Oxeye - Native wildflowers of Ontario
Sweet Ox-Eye - Heliopsis helianthoides | Pots ready spring to fall
Switchgrass in field
Switch Grass - Panicum virgatum | Pots ready spring to fall
Fresh cutbacks
Turtlehead 1GAL pots
Turtlehead - Chelone glabra | Pots ready spring to fall
Upland White Aster / Goldenrod flowers
Upland White Aster;Upland White Goldenrod - Solidago ptarmicoides | Pots ready spring to fall
Virginia Mountain Mint at St. Williams Nursery bee
Virginia Mountain Mint - Pycnanthemum virginianum | Pots ready spring-summer
Whorled milkweed flowers in seedling trays
Whorled Milkweed - Asclepias verticillata | Pots ready spring & fall
Geranium blooms in CRAVO greenhouse
Wild Geranium - Geranium maculatum | Pots ready spring to fall
Berries on strawberry plants up close 4in pots
Wild Strawberry - Fragaria virginiana | Pots ready spring to fall
Fresh cutbacks
Flowers in shade garden at St Williams Nursery
Wood Poppy;Celandine Poppy - Stylophorum diphyllum | Pots ready spring to fall
Woodland Strawberry
Woodland Strawberry - Fragaria vesca | Pots ready spring to fall
Zig Zag Goldenrod
Zig-Zag Goldenrod - Solidago flexicaulis | Pots ready spring to fall
Freshly potted native plants
4in pots herbaceous in greenhouse