Non-native Wildflower Bloom Times

The chart represents the typical blooming season for the species. 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 sooner than Southern MN.

Only plants alien to Minnesota 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.

Non Native Plants
Plant NameAprMayJunJulAugSepOct
Abutilon threophrasti Velvet Leaf    fff
Achillea ptarmica Sneezewort   fff 
Aegopodium podagraria Goutweed ff    
Alliaria petiolata Garlic Mustard ff    
Allium tuberosum Chinese Chives    fff
Anthemis cotula Dog Fennel  ffff 
Arabidopsis thaliana Mouse-ear Cressff     
Arctium minus Common Burdock   fff 
Arenaria serpyllifolia Thyme-leaved Sandwort fffff 
Armoracia rusticana Horseradish fff   
Artemisia absinthium Absinthium   fff 
Artemisia biennis Biennial Wormwood    fff
Artemisia vulgaris Common Mugwort   ffff
Asparagus officinalis Garden Asparagus ff    
Astragalus cicer Chickpea Milk-vetch  fff  
Barbarea vulgaris Garden Yellow Rocketfff    
Berteroa incana Hoary Alyssumfffffff
Brassica nigra Black Mustard  fff  
Brassica rapa Field Mustard  ff   
Butomus umbellatus Flowering Rush  fff  
Camelina microcarpa Small-seeded False Flax fff   
Campanula cervicaria Bristly Bellflower   ff  
Campanula rapunculoides Creeping Bellflower  fffff
Cannabis sativa Hemp  fffff
Capsella bursa-pastoris Shepherd's Purseffffff 
Cardamine impatiens Narrow-leaf Bittercress fff   
Carduus acanthoides Plumeless Thistle   ffff
Carduus nutans Nodding Thistle  fffff
Carum carvi Caraway  fff  
Centaurea stoebe Spotted Knapweed  fffff
Cerastium fontanum Mouse-ear Chickweed fffff 
Chaenorrhinum minus Dwarf Snapdragon  ffff 
Chelidonium majus Celandine ffff  
Cichorium intybus Chicory   ffff
Cirsium arvense Canada Thistle  fffff
Cirsium vulgare Bull Thistle  fffff
Commelina communis Asiatic Dayflower   ffff
Conium maculatum Poison Hemlock  fff  
Convallaria majalis European Lily-of-the-valley ff    
Convolvulus arvensis Field Bindweed  ffff 
Coronilla varia Crown Vetch fffff 
Crepis tectorum Narrow-leaf Hawksbeard  fff  
Cynoglossum officinale Gypsy Flower fff   
Daucus carota Queen Anne's Lace  ffff 
Descurainia sophia Herb Sophia fff   
Dianthus armeria Deptford Pink  ffff 
Digitalis lanata Grecian Foxglove  ff   
Dipsacus laciniatus Cut-leaf Teasel   fff 
Dyssodia papposa Fetid Marigold   ffff
Echinacea pallida Pale Purple Coneflower fff   
Echinacea purpurea Eastern Purple Coneflower   ffff
Echium vulgare Viper's Bugloss  ffff 
Epipactis helleborine Helleborine   ff  
Erucastrum gallicum Dog Mustard  ffff 
Erysimum cheiranthoides Wormseed Wallflower  fff  
Euphorbia cyparissias Cypress Spurge ffff  
Euphorbia esula Leafy Spurge fffff 
Euphrasia officinalis Tartary Eyebright  fff  
Fallopia convolvulus Black-bindweed  fffff
Fallopia japonica var. japonica Japanese Knotweed    ff 
Filipendula ulmaria Queen-of-the-meadow  fff  
Galeopsis tetrahit Brittlestem Hemp-nettle  ffff 
Galinsoga parviflora Small-flowered Galinsoga   fff 
Galinsoga quadriradiata Shaggy Soldier  fffff
Galium mollugo False Baby's Breath  ffff 
Galium verum Yellow Bedstraw  fff  
Geranium sibiricum Siberian Cranesbill    ff 
Glechoma hederacea Ground Ivyfff    
Gnaphalium uliginosum Low Cudweed  ffff 
Hemerocallis fulva Day Lily  fff  
Hesperis matronalis Dame's Rocket fff   
Hibiscus trionum Flower of an Hour   fff 
Hieracium aurantiacum Orange Hawkweed  fffff
Hieracium caespitosum Meadow Hawkweed  fff  
Hieracium pilosella Mouse-ear Hawkweed  ffff 
Hieracium piloselloides Glaucous King-devil  fff  
Hypericum kalmianum Kalm's St. John's-wort   ff  
Hypericum perforatum Common St. Johnswort  ffff 
Inula helenium Elecampane   fff 
Iris pseudacorus Pale-yellow Iris ff    
Lactuca serriola Prickly Lettuce   fff 
Lamium amplexicaule Henbit ffffff
Lappula occidentalis Western Stickseed fff   
Lappula squarrosa European Stickseed fffff 
Lapsana communis Common Nipplewort  ffff 
Lathyrus latifolius Everlasting Pea   fff 
Leonurus cardiaca Motherwort  fff  
Leonurus sibiricus Siberian Motherwort   fff 
Leucanthemella serotina Giant Daisy     ff
Leucanthemum vulgare Ox-eye Daisy  fff  
Lilium lancifolium Tiger Lily   ff  
Linaria dalmatica Dalmatian Toadflax ffff  
Linaria vulgaris Butter and Eggs  fffff
Linum lewisii Blue Flax  ff   
Linum usitatissimum Common Flax  ff   
Lotus corniculatus Birds-foot Trefoil  fff  
Lupinus polyphyllus Large-leaved Lupine fff   
Lysimachia nummularia Creeping Jenny  fff  
Lysimachia vulgaris Garden Loosestrife   ff  
Lythrum salicaria Purple Loosestrife   fff 
Malva neglecta Common Mallow ffffff
Malva rotundifolia Round-leaved Mallow ffffff
Matricaria discoidea Pineapple-weed fffff 
Medicago lupulina Black Medick fffff 
Medicago sativa Alfalfa  ffff 
Melilotus alba White Sweet Clover  fffff
Melilotus officinalis Yellow Sweet Clover  ffff 
Mollugo verticillata Carpetweed  ffff 
Myosotis arvensis Field Forget-me-not ff    
Myosotis scorpioides True Forget-me-not fffff 
Myosotis sylvatica Wood Forget-me-not fffff 
Myosoton aquaticum Giant Chickweed ffffff
Nasturtium officinale Watercressffff   
Nepeta cataria Catnip   ffff
Onopordum acanthium Scotch Thistle  ffff 
Pastinaca sativa Wild Parsnip  ff   
Penstemon digitalis Foxglove Beardtongue ff    
Persicaria hydropiper Marsh Waterpepper   fff 
Persicaria longiseta Oriental Lady's-thumb   ffff
Persicaria maculosa Lady's-thumb  ffff 
Persicaria minor Pygmy Smartweed   fff 
Phlox subulata Creeping Phlox f     
Pimpinella saxifraga Burnet Saxifrage  ffff 
Plantago lanceolata English Plantain  fffff
Plantago major Common Plantain  fffff
Portulaca oleracea Common Purslane  ffff 
Potentilla argentea Silver Cinquefoil  ffff 
Potentilla recta Sulphur Cinquefoil  fff  
Ranunculus acris Tall Buttercup ffffff
Ranunculus testiculatus Bur Buttercupff     
Raphanus raphanistrum Jointed Charlock  fff  
Rorippa sylvestris Creeping Yellow-cress  ffff 
Rumex acetosa Green Sorrel  ff   
Rumex acetosella Common Sheep Sorrel  fff  
Rumex crispus Curly Dock  ff   
Rumex longifolius Dooryard Dock   ff  
Rumex obtusifolius Bitter Dock  ff   
Rumex patientia Patience Dock  ff   
Rumex pseudonatronatus Field Dock  ff   
Rumex stenophyllus Narrowleaf Dock  ff   
Saponaria officinalis Bouncing Bet   fff 
Scilla siberica Siberian Squillff     
Scleranthus annuus Knawel fffff 
Senecio viscosus Sticky Ragwort   fff 
Senecio vulgaris Common Groundsel ffffff
Silene csereii Balkan Catchfly  ffff 
Silene latifolia White Campion fffff 
Silene noctiflora Night-flowering Catchfly  ffff 
Silene vulgaris Bladder Campion  fffff
Sinapis arvensis Charlock ff    
Sisymbrium altissimum Tall Tumble Mustard  fff  
Sisymbrium loeselii Tall Hedge Mustard  fff  
Sisymbrium officinale Hedge Mustard ffffff
Solanum carolinense Horse Nettle fffff 
Solanum dulcamara Bittersweet Nightshade  ffff 
Solanum physalifolium Hairy Nightshade  ffff 
Sonchus arvensis Perennial Sowthistle   ffff
Sonchus asper Spiny Sowthistle   ffff
Sonchus oleraceus Common Sowthistle   ffff
Stellaria graminea Lesser Stitchwort ffff  
Stellaria media Common Chickweed  ffff 
Symphyotrichum ciliatum Rayless Aster    fff
Symphytum officinale Common Comfrey ffff  
Tanacetum vulgare Common Tansy   fff 
Taraxacum erythrospermum Red-seeded Dandelion  fffff
Taraxacum officinale Common Dandelionffffff 
Thlaspi arvense Field Pennycressfff    
Torilis japonica Japanese Hedge Parsley  fff  
Tragopogon dubius Yellow Goat's Beard fffff 
Tragopogon pratensis Meadow Goat's Beard ffff  
Trifolium arvense Rabbit-foot Clover  ffff 
Trifolium aureum Golden Clover fffff 
Trifolium campestre Low Hop Clover fffff 
Trifolium fragiferum Strawberry Clover   fff 
Trifolium hybridum Alsike Clover  ffff 
Trifolium pratense Red Clover  ffff 
Trifolium repens White Clover ffffff
Tripleurospermum inodorum Scentless False Mayweed fffff 
Valeriana officinalis Garden Heliotrope   ffff
Verbascum thapsus Common Mullein  ffff 
Veronica arvensis Corn Speedwell fffff 
Veronica serpyllifolia Thyme-leaf Speedwell ffffff
Vicia cracca Tufted Vetch  fff  
Vicia sativa Common Vetch   fff 
Vicia villosa Hairy Vetch  fff  
Vincetoxicum nigrum Black Swallow-wort  fff