60 wildflowers were recorded blooming in Wisconsin in June in our iNaturalist sample; 35 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in June

Red Columbine

Pink Lady's Slipper

Northern Starflower

Sundial Lupine

Northern Bedstraw
Orange Hawkweed

Yellow Lady's Slipper

Butterfly Milkweed
Ohio spiderwort

Large White Trillium

Prairie Phlox

Dame's Rocket
All wildflowers blooming in Wisconsin in June
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Red Columbine | Aquilegia canadensis | buttercup family | 509 | May (past peak) |
| 2 | Pink Lady's Slipper | Cypripedium acaule | Orchids | 348 | Jun (peak) |
| 3 | Northern Starflower | Lysimachia borealis | primrose family | 230 | May (past peak) |
| 4 | Sundial Lupine | Lupinus perennis | Legumes | 182 | Jun (peak) |
| 5 | Northern Bedstraw | Galium boreale | madder family | 179 | Jun (peak) |
| 6 | Orange Hawkweed | Pilosella aurantiaca | Sunflowers, Daisies, Asters, and Allies | 177 | Jun (peak) |
| 7 | Yellow Lady's Slipper | Cypripedium parviflorum | Orchids | 167 | Jun (peak) |
| 8 | Butterfly Milkweed | Asclepias tuberosa | Dogbane Family | 160 | Jul (rising) |
| 9 | Ohio spiderwort | Tradescantia ohiensis | Spiderworts | 157 | Jun (peak) |
| 10 | Large White Trillium | Trillium grandiflorum | Herb-Paris, False Hellebores, Trilliums and allies | 145 | May (past peak) |
| 11 | Prairie Phlox | Phlox pilosa | phlox family | 138 | Jun (peak) |
| 12 | Dame's Rocket | Hesperis matronalis | mustard family | 136 | May (past peak) |
| 13 | White Campion | Silene latifolia | pink family | 132 | Jun (peak) |
| 14 | Common Milkweed | Asclepias syriaca | Dogbane Family | 131 | Jul (rising) |
| 15 | Red Clover | Trifolium pratense | Legumes | 131 | Jun (peak) |
| 16 | Bluebead Lily | Clintonia borealis | lily family | 129 | Jun (peak) |
| 17 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 127 | Jun (peak) |
| 18 | Bird's-Foot Trefoil | Lotus corniculatus | Legumes | 125 | Jun (peak) |
| 19 | Canada mayflower | Maianthemum canadense | agave and allies | 124 | Jun (peak) |
| 20 | black-eyed Susan | Rudbeckia hirta | Sunflowers, Daisies, Asters, and Allies | 121 | Jul (rising) |
| 21 | Partridgeberry | Mitchella repens | madder family | 121 | Jun (peak) |
| 22 | Showy Lady's Slipper | Cypripedium reginae | Orchids | 119 | Jun (peak) |
| 23 | Wild Geranium | Geranium maculatum | Geranium family | 111 | May (past peak) |
| 24 | Canada anemone | Anemonastrum canadense | buttercup family | 108 | Jun (peak) |
| 25 | Oxeye Daisy | Leucanthemum vulgare | Sunflowers, Daisies, Asters, and Allies | 94 | Jun (peak) |
| 26 | Canadian bunchberry | Cornus canadensis | Dogwood family | 89 | Jun (peak) |
| 27 | Flowering Spurge | Euphorbia corollata | Spurge Family | 88 | Jul (rising) |
| 28 | Hoary Puccoon | Lithospermum canescens | borage family | 87 | May (past peak) |
| 29 | Wood Lily | Lilium philadelphicum | lily family | 86 | Jun (peak) |
| 30 | Purple Crownvetch | Securigera varia | Legumes | 86 | Jun (peak) |
| 31 | Northern Bush Honeysuckle | Diervilla lonicera | honeysuckle family | 85 | Jun (peak) |
| 32 | American white waterlily | Nymphaea odorata | Waterlily Family | 84 | Jul (rising) |
| 33 | Sulphur Cinquefoil | Potentilla recta | rose family | 84 | Jun (peak) |
| 34 | Poke Milkweed | Asclepias exaltata | Dogbane Family | 84 | Jun (peak) |
| 35 | Solomon's plume | Maianthemum racemosum | agave and allies | 83 | Jun (peak) |
| 36 | Bittersweet Nightshade | Solanum dulcamara | nightshade family | 81 | Jun (peak) |
| 37 | Multiflora Rose | Rosa multiflora | rose family | 81 | Jun (peak) |
| 38 | Thimbleberry | Rubus parviflorus | rose family | 80 | Jun (peak) |
| 39 | Spreading Dogbane | Apocynum androsaemifolium | Dogbane Family | 75 | Jun (peak) |
| 40 | Virginia waterleaf | Hydrophyllum virginianum | borage family | 71 | May (past peak) |
| 41 | American black elderberry | Sambucus canadensis | elder family | 70 | Jun (peak) |
| 42 | Hoary Alyssum | Berteroa incana | mustard family | 69 | Jul (rising) |
| 43 | Fringed Polygala | Polygaloides paucifolia | milkworts | 66 | May (past peak) |
| 44 | Common Motherwort | Leonurus cardiaca | Mint Family | 64 | Jun (peak) |
| 45 | Foxglove Beardtongue | Penstemon digitalis | Plantain Family | 64 | Jun (peak) |
| 46 | Pale-Spiked Lobelia | Lobelia spicata | bellflower family | 62 | Jun (peak) |
| 47 | Eastern Shooting Star | Primula meadia | primrose family | 62 | May (past peak) |
| 48 | Tall Blue Wild Indigo | Baptisia australis | Legumes | 61 | Jun (peak) |
| 49 | Northern Blue Flag | Iris versicolor | iris family | 58 | Jun (peak) |
| 50 | Whorled Loosestrife | Lysimachia quadrifolia | primrose family | 58 | Jun (peak) |