Minnesota Wildflowers


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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
Alliaria petiolata Garlic Mustard ff    
Arctium minus Common Burdock   fff 
Artemisia absinthium Absinthium   fff 
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  
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
Centaurea stoebe Spotted Knapweed  fffff
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  ff   
Daucus carota Queen Anne's Lace  ffff 
Digitalis lanata Grecian Foxglove  ff   
Dipsacus laciniatus Cut-leaf Teasel   fff 
Echinacea pallida Pale Purple Coneflower fff   
Echinacea purpurea Eastern Purple Coneflower   ffff
Erysimum cheiranthoides Wormseed Wallflower  fff  
Euphorbia cyparissias Cypress Spurge ffff  
Euphorbia esula Leafy Spurge fffff 
Fallopia japonica (Polygonum cuspidatum) Japanese Knotweed    ff 
Galeopsis tetrahit Brittlestem Hemp-nettle  ffff 
Galinsoga quadriradiata Shaggy Soldier  fffff
Galium verum Yellow Bedstraw  fff  
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 piloselloides Glaucous King-devil  fff  
Hypericum perforatum Common St. Johnswort  ffff 
Iris pseudacorus Pale-yellow Iris ff    
Lactuca serriola Prickly Lettuce   fff 
Lapsana communis Common Nipplewort  ffff 
Leonurus cardiaca Motherwort  fff  
Leucanthemum vulgare Ox-eye Daisy  fff  
Lilium lancifolium Tiger Lily   ff  
Linaria dalmatica Dalmatian Toadflax ffff  
Linaria vulgaris Butter and Eggs  fffff
Lotus corniculatus Birds-foot Trefoil  fff  
Lupinus polyphyllus Large-leaved Lupine fff   
Lythrum salicaria Purple Loosestrife   fff 
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 
Myosoton aquaticum Giant Chickweed ffffff
Nasturtium officinale Watercressffff   
Nepeta cataria Catnip   ffff
Onopordum acanthium Scotch Thistle  ffff 
Pastinaca sativa Wild Parsnip  ff   
Potentilla argentea Silver Cinquefoil  ffff 
Potentilla recta Sulphur Cinquefoil  fff  
Ranunculus acris Tall Buttercup ffffff
Rumex crispus Curly Dock  ff   
Saponaria officinalis Bouncing Bet   fff 
Scilla siberica Siberian Squillff     
Silene csereii Balkan Catchfly  ffff 
Silene latifolia White Campion fffff 
Sisymbrium altissimum Tall Tumble Mustard  fff  
Sisymbrium loeselii Tall Hedge Mustard  fff  
Solanum dulcamara Bittersweet Nightshade  ffff 
Solanum rostratum Buffalo Bur Nightshade  ffff 
Sonchus arvensis Perennial Sowthistle   ffff
Sonchus asper Spiny Sowthistle   ffff
Sonchus oleraceus Common Sowthistle   ffff
Tanacetum vulgare Common Tansy   fff 
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 hybridum Alsike Clover  ffff 
Trifolium pratense Red Clover  ffff 
Trifolium repens White Clover ffffff
Valeriana officinalis Garden Heliotrope   ffff
Verbascum thapsus Common Mullein  ffff 
Veronica arvensis Corn Speedwell fffff 
Veronica serpyllifolia Thyme-leaf Speedwell ffffff
Vicia sativa Common Vetch   fff 
Vicia villosa Hairy Vetch  fff