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.
| Plant Name | Apr | May | Jun | Jul | Aug | Sep | Oct |
|---|---|---|---|---|---|---|---|
| Abutilon threophrasti Velvet Leaf | f | f | f | ||||
| Alliaria petiolata Garlic Mustard | f | f | |||||
| Arctium minus Common Burdock | f | f | f | ||||
| Artemisia absinthium Absinthium | f | f | f | ||||
| Asparagus officinalis Garden Asparagus | f | f | |||||
| Astragalus cicer Chickpea Milk-vetch | f | f | f | ||||
| Barbarea vulgaris Garden Yellow Rocket | f | f | f | ||||
| Berteroa incana Hoary Alyssum | f | f | f | f | f | f | f |
| Brassica nigra Black Mustard | f | f | f | ||||
| Brassica rapa Field Mustard | f | f | |||||
| Butomus umbellatus Flowering Rush | f | f | f | ||||
| Campanula rapunculoides Creeping Bellflower | f | f | f | f | f | ||
| Cannabis sativa Hemp | f | f | f | f | f | ||
| Capsella bursa-pastoris Shepherd's Purse | f | f | f | f | f | f | |
| Cardamine impatiens Narrow-leaf Bittercress | f | f | f | ||||
| Carduus acanthoides Plumeless Thistle | f | f | f | f | |||
| Carduus nutans Nodding Thistle | f | f | f | f | f | ||
| Centaurea stoebe Spotted Knapweed | f | f | f | f | f | ||
| Chelidonium majus Celandine | f | f | f | f | |||
| Cichorium intybus Chicory | f | f | f | f | |||
| Cirsium arvense Canada Thistle | f | f | f | f | f | ||
| Cirsium vulgare Bull Thistle | f | f | f | f | f | ||
| Commelina communis Asiatic Dayflower | f | f | f | f | |||
| Conium maculatum Poison Hemlock | f | f | f | ||||
| Convallaria majalis European Lily-of-the-valley | f | f | |||||
| Convolvulus arvensis Field Bindweed | f | f | f | f | |||
| Coronilla varia Crown Vetch | f | f | f | f | f | ||
| Crepis tectorum Narrow-leaf Hawksbeard | f | f | f | ||||
| Cynoglossum officinale Gypsy Flower | f | f | |||||
| Daucus carota Queen Anne's Lace | f | f | f | f | |||
| Digitalis lanata Grecian Foxglove | f | f | |||||
| Dipsacus laciniatus Cut-leaf Teasel | f | f | f | ||||
| Echinacea pallida Pale Purple Coneflower | f | f | f | ||||
| Echinacea purpurea Eastern Purple Coneflower | f | f | f | f | |||
| Erysimum cheiranthoides Wormseed Wallflower | f | f | f | ||||
| Euphorbia cyparissias Cypress Spurge | f | f | f | f | |||
| Euphorbia esula Leafy Spurge | f | f | f | f | f | ||
| Fallopia japonica (Polygonum cuspidatum) Japanese Knotweed | f | f | |||||
| Galeopsis tetrahit Brittlestem Hemp-nettle | f | f | f | f | |||
| Galinsoga quadriradiata Shaggy Soldier | f | f | f | f | f | ||
| Galium verum Yellow Bedstraw | f | f | f | ||||
| Glechoma hederacea Ground Ivy | f | f | f | ||||
| Gnaphalium uliginosum Low Cudweed | f | f | f | f | |||
| Hemerocallis fulva Day Lily | f | f | f | ||||
| Hesperis matronalis Dame's Rocket | f | f | f | ||||
| Hibiscus trionum Flower of an Hour | f | f | f | ||||
| Hieracium aurantiacum Orange Hawkweed | f | f | f | f | f | ||
| Hieracium caespitosum Meadow Hawkweed | f | f | f | ||||
| Hieracium piloselloides Glaucous King-devil | f | f | f | ||||
| Hypericum perforatum Common St. Johnswort | f | f | f | f | |||
| Iris pseudacorus Pale-yellow Iris | f | f | |||||
| Lactuca serriola Prickly Lettuce | f | f | f | ||||
| Lapsana communis Common Nipplewort | f | f | f | f | |||
| Leonurus cardiaca Motherwort | f | f | f | ||||
| Leucanthemum vulgare Ox-eye Daisy | f | f | f | ||||
| Lilium lancifolium Tiger Lily | f | f | |||||
| Linaria dalmatica Dalmatian Toadflax | f | f | f | f | |||
| Linaria vulgaris Butter and Eggs | f | f | f | f | f | ||
| Lotus corniculatus Birds-foot Trefoil | f | f | f | ||||
| Lupinus polyphyllus Large-leaved Lupine | f | f | f | ||||
| Lythrum salicaria Purple Loosestrife | f | f | f | ||||
| Matricaria discoidea Pineapple-weed | f | f | f | f | f | ||
| Medicago lupulina Black Medick | f | f | f | f | f | ||
| Medicago sativa Alfalfa | f | f | f | f | |||
| Melilotus alba White Sweet Clover | f | f | f | f | f | ||
| Melilotus officinalis Yellow Sweet Clover | f | f | f | f | |||
| Mollugo verticillata Carpetweed | f | f | f | f | |||
| Myosoton aquaticum Giant Chickweed | f | f | f | f | f | f | |
| Nasturtium officinale Watercress | f | f | f | f | |||
| Nepeta cataria Catnip | f | f | f | f | |||
| Onopordum acanthium Scotch Thistle | f | f | f | f | |||
| Pastinaca sativa Wild Parsnip | f | f | |||||
| Potentilla argentea Silver Cinquefoil | f | f | f | f | |||
| Potentilla recta Sulphur Cinquefoil | f | f | f | ||||
| Ranunculus acris Tall Buttercup | f | f | f | f | f | f | |
| Rumex crispus Curly Dock | f | f | |||||
| Saponaria officinalis Bouncing Bet | f | f | f | ||||
| Scilla siberica Siberian Squill | f | f | |||||
| Silene csereii Balkan Catchfly | f | f | f | f | |||
| Silene latifolia White Campion | f | f | f | f | f | ||
| Sisymbrium altissimum Tall Tumble Mustard | f | f | f | ||||
| Sisymbrium loeselii Tall Hedge Mustard | f | f | f | ||||
| Solanum dulcamara Bittersweet Nightshade | f | f | f | f | |||
| Solanum rostratum Buffalo Bur Nightshade | f | f | f | f | |||
| Sonchus arvensis Perennial Sowthistle | f | f | f | f | |||
| Sonchus asper Spiny Sowthistle | f | f | f | f | |||
| Sonchus oleraceus Common Sowthistle | f | f | f | f | |||
| Tanacetum vulgare Common Tansy | f | f | f | ||||
| Taraxacum officinale Common Dandelion | f | f | f | f | f | f | |
| Thlaspi arvense Field Pennycress | f | f | f | ||||
| Torilis japonica Japanese Hedge Parsley | f | f | f | ||||
| Tragopogon dubius Yellow Goat's Beard | f | f | f | f | f | ||
| Tragopogon pratensis Meadow Goat's Beard | f | f | f | f | |||
| Trifolium arvense Rabbit-foot Clover | f | f | f | f | |||
| Trifolium aureum Golden Clover | f | f | f | f | f | ||
| Trifolium campestre Low Hop Clover | f | f | f | f | f | ||
| Trifolium hybridum Alsike Clover | f | f | f | f | |||
| Trifolium pratense Red Clover | f | f | f | f | |||
| Trifolium repens White Clover | f | f | f | f | f | f | |
| Valeriana officinalis Garden Heliotrope | f | f | f | f | |||
| Verbascum thapsus Common Mullein | f | f | f | f | |||
| Veronica arvensis Corn Speedwell | f | f | f | f | f | ||
| Veronica serpyllifolia Thyme-leaf Speedwell | f | f | f | f | f | f | |
| Vicia sativa Common Vetch | f | f | f | ||||
| Vicia villosa Hairy Vetch | f | f | f |
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