What’s Blooming in September?
The chart represents the approximate bloom times in Minnesota. Factors such as temperature and precipitation play a large role in how a plant fares year after year. Northern MN should also start a bit later and/or end a bit earlier than Southern MN.
Only native plants are listed here. If you are looking for something specific, try the “find in page” feature of your browser (usually CTRL+F).
Reference: f = flowering. See also non-native bloom times.
| Plant Name | Week 1 | Week 2 | Week 3 | Week 4 |
|---|---|---|---|---|
| Acalypha rhomboidea Three-seeded Mercury | f | f | f | f |
| Achillea millefolium Common Yarrow | f | f | f | f |
| Acmispon americanus American Bird's-foot Trefoil | f | f | f | f |
| Adlumia fungosa Allegheny Vine | f | f | f | f |
| Agalinis aspera Rough False Foxglove | f | f | f | f |
| Agalinis auriculata Earleaf False Foxglove | f | |||
| Agalinis gattingeri Round-stemmed False Foxglove | f | f | f | f |
| Agalinis paupercula Small-flower False Foxglove | f | f | f | f |
| Agalinis purpurea Purple False Foxglove | f | f | f | f |
| Agalinis tenuifolia Slender-leaved False Foxglove | f | f | f | f |
| Agastache foeniculum Blue Giant Hyssop | f | f | f | f |
| Agastache nepetoides Yellow Giant Hyssop | f | f | f | f |
| Ageratina altissima White Snakeroot | f | f | f | f |
| Agrimonia gryposepala Tall Hairy Agrimony | f | |||
| Agrimonia pubescens Downy Agrimony | f | |||
| Agrimonia striata Roadside Agrimony | f | |||
| Alisma triviale Northern Water Plantain | f | |||
| Amaranthus albus Tumbleweed Amaranth | f | f | f | f |
| Amaranthus blitoides Prostrate Pigweed | f | f | f | f |
| Amaranthus tuberculatus Rough-fruited Waterhemp | f | f | f | f |
| Ambrosia artemisiifolia Common Ragweed | f | f | f | f |
| Ambrosia psilostachya Western Ragweed | f | f | f | f |
| Ambrosia trifida Giant Ragweed | f | f | f | |
| Ammannia robusta Grand Redstem | f | f | f | f |
| Amphicarpaea bracteata American Hog Peanut | f | f | f | |
| Anaphalis margaritacea Pearly Everlasting | f | f | f | f |
| Apios americana Groundnut | f | f | f | |
| Artemisia campestris Field Sagewort | f | f | f | f |
| Artemisia dracunculus Tarragon | f | f | f | f |
| Artemisia frigida Prairie Sagewort | f | f | f | f |
| Artemisia ludoviciana White Sage | f | f | f | f |
| Artemisia serrata Saw-tooth Wormwood | f | f | f | f |
| Asclepias incarnata Swamp Milkweed | f | f | ||
| Asclepias tuberosa Butterfly-weed | f | |||
| Asclepias verticillata Whorled Milkweed | f | f | f | f |
| Aureolaria pedicularia Fern-leaf False Foxglove | f | f | f | f |
| Bartonia virginica Yellow Bartonia | f | f | f | f |
| Berula erecta Cut-leaf Water Parsnip | f | f | f | f |
| Bidens beckii Water Marigold | f | f | f | f |
| Bidens cernua Nodding Bur-Marigold | f | f | f | f |
| Bidens connata Purple-stem Beggarticks | f | f | f | f |
| Bidens discoidea Discoid Beggarticks | f | f | f | f |
| Bidens frondosa Devil's Beggarticks | f | f | f | f |
| Bidens trichosperma Crowned Beggarticks | f | f | f | f |
| Bidens tripartita Three-lobed Beggarticks | f | f | f | f |
| Bidens vulgata Big Devil's Beggarticks | f | f | f | f |
| Blephilia hirsuta Hairy Woodmint | f | f | f | f |
| Boehmeria cylindrica Small-spike False Nettle | f | f | ||
| Boltonia asteroides False Aster | f | f | f | f |
| Brickellia eupatorioides False Boneset | f | f | f | f |
| Callirhoe triangulata Clustered Poppy-mallow | f | f | f | f |
| Calystegia sepium Hedge Bindweed | f | f | f | f |
| Campanula rotundifolia Harebell | f | f | f | f |
| Campanulastrum americanum American Bellflower | f | f | f | f |
| Canadanthus modestus Modest Aster | f | f | f | f |
| Chamaecrista fasciculata Partridge Pea | f | f | ||
| Chelone glabra White Turtlehead | f | f | f | f |
| Chenopodium berlandieri Pitseed Goosefoot | f | f | f | f |
| Chenopodium glaucum Oak-leaved Goosefoot | f | f | f | f |
| Chenopodium pratericola Desert Goosefoot | f | f | f | f |
| Chenopodium rubrum Red Goosefoot | f | f | f | f |
| Chenopodium simplex Maple-leaf Goosefoot | f | f | ||
| Chenopodium standleyanum Woodland Goosefoot | f | f | ||
| Cicuta bulbifera Bulblet-bearing Water Hemlock | f | f | f | f |
| Cirsium altissimum Tall Thistle | f | f | f | f |
| Cirsium discolor Field Thistle | f | f | f | f |
| Cirsium muticum Swamp Thistle | f | f | f | f |
| Commelina erecta Slender Dayflower | f | |||
| Conyza canadensis Canadian Horseweed | f | f | f | f |
| Corallorhiza odontorhiza Autumn Coralroot | f | f | f | f |
| Corydalis sempervirens Pale Corydalis | f | f | f | f |
| Crotalaria sagittalis Rattlebox | f | f | f | f |
| Cuscuta glomerata Rope Dodder | f | f | f | f |
| Cyclachaena xanthiifolia Giant Sumpweed | f | f | f | f |
| Dalea leporina Foxtail Prairie Clover | f | f | ||
| Dasiphora fruticosa Shrubby Cinquefoil | f | f | f | |
| Decodon verticillatus Swamp Loosestrife | f | f | f | f |
| Desmodium canadense Showy Tick-trefoil | f | |||
| Doellingeria umbellata Flat-topped White Aster | f | f | f | f |
| Echinacea angustifolia Narrow-leaved Purple Coneflower | f | f | f | f |
| Echinocystis lobata Wild Cucumber | f | f | f | f |
| Eclipta prostrata Yerba-de-tajo | f | f | f | f |
| Epilobium ciliatum Fringed Willowherb | f | f | f | f |
| Epilobium coloratum Purple-leaf Willowherb | f | f | f | f |
| Epilobium leptophyllum Bog Willowherb | f | f | f | f |
| Erechtites hieraciifolius Pilewort | f | f | f | f |
| Erigeron annuus Annual Fleabane | f | f | f | f |
| Erigeron strigosus Prairie Fleabane | f | f | f | f |
| Eriocaulon aquaticum Common Pipewort | f | f | f | f |
| Eupatorium altissimum Tall Boneset | f | f | f | f |
| Eupatorium perfoliatum Common Boneset | f | f | f | f |
| Euphorbia corollata Flowering Spurge | f | |||
| Euphorbia cyathophora Painted Leaf | f | f | f | f |
| Euphorbia geyeri Geyer's Spurge | f | f | f | f |
| Euphorbia glyptosperma Ridge-seed Spurge | f | f | f | f |
| Euphorbia maculata Spotted Spurge | f | f | f | f |
| Euphorbia marginata Snow-on-the-mountain | f | f | f | f |
| Euphorbia nutans Nodding Spurge | f | f | f | f |
| Euphorbia serpillifolia Thyme-leaved Spurge | f | f | f | f |
| Eurybia macrophylla Large-leaved Aster | f | f | f | f |
| Euthamia graminifolia Grass-leaved Goldenrod | f | f | f | f |
| Euthamia gymnospermoides Great Plains Goldenrod | f | f | f | f |
| Eutrochium maculatum Spotted Joe-pye Weed | f | f | ||
| Eutrochium purpureum Sweet Scented Joe Pye Weed | f | f | ||
| Fallopia cilinodis Fringed Black-bindweed | f | f | f | f |
| Fallopia scandens Climbing False Buckwheat | f | f | f | f |
| Froelichia floridana Prairie Cottonweed | f | f | f | f |
| Gaillardia aristata Blanketflower | f | |||
| Galium asprellum Rough Bedstraw | f | |||
| Galium tinctorium Stiff Marsh Bedstraw | f | f | f | f |
| Gentiana affinis Pleated Gentian | f | f | ||
| Gentiana andrewsii Bottle Gentian | f | f | f | f |
| Gentiana flavida Yellow Gentian | f | f | f | f |
| Gentiana puberulenta Downy Gentian | f | f | f | f |
| Gentiana rubricaulis Great Lakes Gentian | f | f | f | f |
| Gentianella quinquefolia Stiff Gentian | f | f | f | f |
| Gentianopsis crinita Greater Fringed Gentian | f | f | f | f |
| Gentianopsis virgata Lesser Fringed Gentian | f | f | f | f |
| Geranium bicknellii Bicknell's Cranesbill | f | f | f | f |
| Goodyera pubescens Downy Rattlesnake Plantain | f | |||
| Goodyera repens Lesser Rattlesnake Plantain | f | f | ||
| Grindelia squarrosa Gumweed | f | f | f | f |
| Helenium autumnale Sneezeweed | f | f | f | f |
| Helianthus annuus Common Sunflower | f | f | f | f |
| Helianthus giganteus Giant Sunflower | f | f | f | f |
| Helianthus grosseserratus Sawtooth Sunflower | f | f | f | f |
| Helianthus hirsutus Hairy Sunflower | f | f | f | f |
| Helianthus maximiliani Maximilian Sunflower | f | f | f | f |
| Helianthus nuttallii Nuttall's Sunflower | f | f | ||
| Helianthus occidentalis Few-leaf Sunflower | f | f | ||
| Helianthus pauciflorus Stiff Sunflower | f | f | ||
| Helianthus petiolaris Prairie Sunflower | f | f | f | f |
| Helianthus strumosus Woodland Sunflower | f | f | f | f |
| Helianthus tuberosus Jerusalem Artichoke | f | f | f | f |
| Heliopsis helianthoides Smooth Oxeye | f | f | f | f |
| Heteranthera dubia Water Star-grass | f | f | f | f |
| Heterotheca villosa Hairy False Goldenaster | f | f | f | f |
| Hibiscus laevis Halberd-leaved Rose Mallow | f | f | f | f |
| Hieracium longipilum Hairy Hawkweed | f | f | f | |
| Hieracium scabrum Sticky Hawkweed | f | f | f | f |
| Hieracium umbellatum Narrow-leaf Hawkweed | f | f | f | f |
| Hydrocotyle ranunculoides Floating Pennywort | f | f | f | f |
| Hypericum boreale Northern St. John's-wort | f | f | f | f |
| Hypericum majus Larger Canadian St. Johnswort | f | f | f | f |
| Impatiens capensis Spotted Touch-me-not | f | f | f | f |
| Impatiens pallida Pale Touch-me-not | f | f | f | f |
| Juncus articulatus Jointed Rush | f | f | f | f |
| Juncus bufonius Toad Rush | f | f | f | f |
| Juncus longistylis Long-styled Rush | f | f | ||
| Juncus marginatus Grassleaf Rush | f | f | ||
| Juncus pelocarpus Brown-fruit Rush | f | f | f | f |
| Lactuca biennis Tall Blue Lettuce | f | f | ||
| Lactuca canadensis Wild Lettuce | f | f | f | f |
| Lactuca floridana Woodland Lettuce | f | f | ||
| Lactuca ludoviciana Louisiana Lettuce | f | f | f | f |
| Lechea stricta Prairie Pinweed | f | f | f | f |
| Lepidium virginicum Virginia Peppergrass | f | f | f | f |
| Lespedeza capitata Round-headed Bush Clover | f | f | ||
| Liatris aspera Rough Blazing Star | f | f | f | f |
| Liatris cylindracea Cylindric Blazing Star | f | f | f | f |
| Liatris ligulistylis Northern Plains Blazing Star | f | f | f | f |
| Liatris punctata Dotted Blazing Star | f | f | f | f |
| Liatris pycnostachya Prairie Blazing Star | f | f | f | f |
| Lindernia dubia False Pimpernel | f | f | f | f |
| Linum sulcatum Grooved Yellow Flax | f | f | ||
| Lobelia cardinalis Cardinal Flower | f | f | f | f |
| Lobelia dortmanna Water Lobelia | f | f | f | f |
| Lobelia inflata Indian Tobacco | f | f | f | f |
| Lobelia kalmii Kalm's Lobelia | f | f | f | f |
| Lobelia siphilitica Blue Lobelia | f | f | f | f |
| Ludwigia palustris Water Purslane | f | f | f | f |
| Ludwigia polycarpa False Loosestrife | f | f | f | f |
| Lycopus americanus American Water Horehound | f | f | f | f |
| Lycopus asper Rough Bugleweed | f | f | ||
| Lycopus uniflorus Northern Bugleweed | f | f | ||
| Lycopus virginicus Virginia Bugleweed | f | f | ||
| Lysimachia minima Chaffweed | f | f | f | f |
| Lythrum alatum Winged Loosestrife | f | |||
| Mentha arvensis Wild Mint | f | f | ||
| Mimulus ringens Allegheny Monkey Flower | f | |||
| Mirabilis albida Hairy Four O'clock | f | f | f | f |
| Mirabilis nyctaginea Wild Four O'Clock | f | f | ||
| Monarda punctata Spotted Horsemint | f | f | f | f |
| Monotropa uniflora Indian Pipe | f | f | f | f |
| Mulgedium pulchellum Showy Blue Lettuce | f | f | f | f |
| Myosotis laxa Smaller Forget-me-not | f | f | f | f |
| Nabalus albus White Rattlesnake-root | f | f | f | f |
| Nabalus asper Rough Rattlesnake-root | f | |||
| Nabalus racemosus Purple Rattlesnake-root | f | f | f | f |
| Nelumbo lutea American Lotus | f | f | f | f |
| Nymphaea odorata American White Water-lily | f | f | ||
| Oenothera biennis Common Evening Primrose | f | f | f | f |
| Oenothera clelandii Cleland's Evening Primrose | f | f | f | f |
| Oenothera laciniata Cut-leaved Evening Primrose | f | f | f | f |
| Oenothera parviflora Northern Evening Primrose | f | f | f | f |
| Oenothera rhombipetala Fourpoint Evening Primrose | f | f | ||
| Orobanche ludoviciana Louisiana Broomrape | f | f | f | f |
| Oxalis dillenii Southern Wood Sorrel | f | f | f | f |
| Oxalis stricta Yellow Wood Sorrel | f | f | f | f |
| Packera indecora Elegant Groundsel | f | f | ||
| Parietaria pensylvanica Pennsylvania Pellitory | f | f | f | f |
| Parnassia glauca American Grass of Parnassus | f | f | f | f |
| Parnassia palustris Marsh Grass of Parnassus | f | f | f | f |
| Paronychia canadensis Smooth Forked Nailwort | f | f | ||
| Parthenium integrifolium Wild Quinine | f | f | ||
| Pedicularis lanceolata Swamp Lousewort | f | f | f | f |
| Penthorum sedoides Ditch Stonecrop | f | |||
| Persicaria amphibia Swamp Smartweed | f | f | f | |
| Persicaria arifolia Halberd-leaved Tearthumb | f | f | f | f |
| Persicaria careyi Carey's Smartweed | f | f | f | f |
| Persicaria hydropiperoides Mild Waterpepper | f | f | f | f |
| Persicaria lapathifolia Nodding Smartweed | f | f | f | f |
| Persicaria pensylvanica Pennsylvania Smartweed | f | f | f | f |
| Persicaria punctata Dotted Smartweed | f | f | f | f |
| Persicaria virginiana Jumpseed | f | f | f | f |
| Phlox paniculata Garden Phlox | f | f | f | f |
| Phyla lanceolata Lance-leaf Fog Fruit | f | f | f | f |
| Physalis heterophylla Clammy Ground Cherry | f | f | f | f |
| Physostegia virginiana Obedient Plant | f | f | f | f |
| Pilea fontana Black-fruited Clearweed | f | f | f | f |
| Pilea pumila Dwarf Clearweed | f | f | f | f |
| Plantago aristata Large-bracted Plantain | f | f | ||
| Plantago rugelii Rugel's Plantain | f | f | f | f |
| Polanisia dodecandra Red-whisker Clammyweed | f | f | f | f |
| Polygala cruciata Cross-leaved Milkwort | f | f | f | f |
| Polygala sanguinea Blood Milkwort | f | f | f | f |
| Polygala verticillata Whorled Milkwort | f | f | f | f |
| Polygonella articulata Coast Jointweed | f | f | f | f |
| Polygonum achoreum Leathery Knotweed | f | f | f | f |
| Polygonum tenue Slender Knotweed | f | f | f | f |
| Polymnia canadensis Leafcup | f | f | f | f |
| Pontederia cordata Pickerelweed | f | f | f | f |
| Potentilla anserina Silverweed Cinquefoil | f | f | f | f |
| Prunella vulgaris Self-heal | f | f | f | f |
| Pseudognaphalium obtusifolium Sweet Everlasting | f | f | f | f |
| Pycnanthemum virginianum Virginia Mountain Mint | f | f | f | f |
| Ranunculus flammula Lesser Spearwort | f | f | f | f |
| Ranunculus sceleratus Cursed Crowfoot | f | f | f | f |
| Rorippa palustris Bog Yellow-cress | f | f | f | f |
| Rorippa sessiliflora Stalkless Yellow-cress | f | f | f | f |
| Rotala ramosior Toothcup | f | f | ||
| Rudbeckia hirta Black-eyed Susan | f | f | f | f |
| Rudbeckia laciniata Cut-leaf Coneflower | f | f | f | f |
| Rudbeckia subtomentosa Sweet Coneflower | f | f | f | f |
| Rudbeckia triloba Brown-eyed Susan | f | f | f | f |
| Sagittaria cristata Crested Arrowhead | f | f | ||
| Sagittaria cuneata Arum-leaved Arrowhead | f | f | ||
| Sagittaria latifolia Broad-leaf Arrowhead | f | f | f | f |
| Sagittaria montevidensis subsp. calycina Hooded Arrowhead | f | f | f | f |
| Sagittaria rigida Sessile-fruited Arrowhead | f | f | ||
| Scrophularia marilandica Maryland Figwort | f | f | f | f |
| Scutellaria lateriflora Mad-dog Skullcap | f | f | f | |
| Sicyos angulatus Bur Cucumber | f | f | f | f |
| Silene antirrhina Sleepy Catchfly | f | f | f | f |
| Silphium integrifolium Rosinweed | f | f | f | f |
| Silphium laciniatum Compass Plant | f | f | f | |
| Silphium perfoliatum Cup Plant | f | |||
| Silphium terebinthinaceum Prairie Dock | f | f | f | f |
| Sium suave Water Parsnip | f | f | f | f |
| Solanum ptychanthum Black Nightshade | f | f | f | f |
| Solanum rostratum Buffalo Bur Nightshade | f | f | f | f |
| Solidago altissima Tall Goldenrod | f | f | f | f |
| Solidago canadensis Canada Goldenrod | f | f | f | f |
| Solidago flexicaulis Zigzag Goldenrod | f | f | f | f |
| Solidago gigantea Giant Goldenrod | f | f | f | f |
| Solidago hispida Hairy Goldenrod | f | f | f | f |
| Solidago juncea Early Goldenrod | f | f | f | f |
| Solidago missouriensis Missouri Goldenrod | f | f | f | f |
| Solidago mollis Velvety Goldenrod | f | f | f | f |
| Solidago nemoralis Gray Goldenrod | f | f | f | f |
| Solidago ptarmicoides Upland White Goldenrod | f | f | f | f |
| Solidago riddellii Riddell's Goldenrod | f | f | f | f |
| Solidago rigida Stiff Goldenrod | f | f | f | f |
| Solidago sciaphila Cliff Goldenrod | f | f | f | f |
| Solidago speciosa Showy Goldenrod | f | f | f | f |
| Solidago uliginosa Bog Goldenrod | f | f | f | f |
| Solidago ulmifolia Elm-leaved Goldenrod | f | f | f | f |
| Spiraea alba White Meadowsweet | f | f | f | f |
| Spiraea tomentosa Steeplebush | f | f | f | f |
| Spiranthes casei Case's Ladies'-tresses | f | f | ||
| Spiranthes cernua Nodding Ladies'-tresses | f | f | f | |
| Spiranthes lacera var. gracilis Southern Slender Ladies'-tresses | f | f | f | f |
| Spiranthes magnicamporum Great Plains Ladies'-tresses | f | f | f | f |
| Strophostyles helvola Wild Bean | f | f | f | f |
| Strophostyles leiosperma Trailing Pea | f | f | f | f |
| Suaeda calceoliformis Seablite | f | f | f | f |
| Symphyotrichum boreale Northern Bog Aster | f | f | f | f |
| Symphyotrichum ciliatum Rayless Aster | f | f | f | f |
| Symphyotrichum ciliolatum Lindley's Aster | f | f | f | f |
| Symphyotrichum cordifolium Blue Wood Aster | f | f | f | f |
| Symphyotrichum drummondii Drummond's Aster | f | f | f | f |
| Symphyotrichum ericoides Heath Aster | f | f | f | f |
| Symphyotrichum firmum Shining Aster | f | f | f | f |
| Symphyotrichum laeve Smooth Blue Aster | f | f | f | f |
| Symphyotrichum lanceolatum Panicled Aster | f | f | f | f |
| Symphyotrichum lateriflorum Calico Aster | f | f | f | f |
| Symphyotrichum novae-angliae New England Aster | f | f | f | f |
| Symphyotrichum oblongifolium Aromatic Aster | f | f | f | f |
| Symphyotrichum ontarionis Ontario Aster | f | f | f | f |
| Symphyotrichum oolentangiense Sky-blue Aster | f | f | f | f |
| Symphyotrichum pilosum Awl Aster | f | f | f | f |
| Symphyotrichum prenanthoides Crooked Aster | f | f | f | f |
| Symphyotrichum puniceum Purple-stemmed Aster | f | f | f | f |
| Symphyotrichum sericeum Silky Aster | f | f | f | f |
| Symphyotrichum shortii Short's Aster | f | f | f | f |
| Symphyotrichum urophyllum Arrowleaf Aster | f | f | f | f |
| Tradescantia occidentalis Spiderwort | f | f | f | f |
| Trichostema brachiatum False Pennyroyal | f | f | f | f |
| Utricularia gibba Humped Bladderwort | f | f | ||
| Utricularia minor Lesser Bladderwort | f | f | ||
| Utricularia purpurea Purple-flowered Bladderwort | f | f | f | f |
| Utricularia resupinata Lavender Bladderwort | f | |||
| Verbena bracteata Big-bract Verbena | f | f | f | f |
| Verbena hastata Blue Vervain | f | f | f | f |
| Verbena stricta Hoary Vervain | f | f | ||
| Verbena urticifolia White Vervain | f | |||
| Vernonia fasciculata Prairie Ironweed | f | f | f | |
| Veronica americana American Speedwell | f | f | f | f |
| Veronica catenata Water Speedwell | f | |||
| Veronica peregrina Purslane Speedwell | f | f | f | f |
| Veronica scutellata Marsh Speedwell | f | f | f | f |
| Vicia americana American Vetch | f | f | ||
| Xanthisma spinulosum Cutleaf Ironplant | f | f | ||
| Xanthium strumarium Cocklebur | f | f | f | f |