59 wildflowers were recorded blooming in Utah in June in our iNaturalist sample; 21 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in June

Sego Lily

Showy Milkweed

Hooker's onion

Blue Columbine

Field Bindweed

Glacier Lily

Scarlet Gilia

Fendler's Sandmat

Antelopehorn Milkweed

Common Yarrow

Woodland Strawberry

Monument Plant
All wildflowers blooming in Utah in June
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Sego Lily | Calochortus nuttallii | lily family | 458 | Jun (peak) |
| 2 | Showy Milkweed | Asclepias speciosa | Dogbane Family | 297 | Jun (peak) |
| 3 | Hooker's onion | Allium acuminatum | amaryllis, onions, and allies | 185 | Jun (peak) |
| 4 | Blue Columbine | Aquilegia coerulea | buttercup family | 153 | Jul (rising) |
| 5 | Field Bindweed | Convolvulus arvensis | bindweed family | 134 | Jun (peak) |
| 6 | Glacier Lily | Erythronium grandiflorum | lily family | 108 | Apr (past peak) |
| 7 | Scarlet Gilia | Ipomopsis aggregata | phlox family | 100 | Jun (peak) |
| 8 | Fendler's Sandmat | Euphorbia fendleri | Spurge Family | 90 | Jun (peak) |
| 9 | Antelopehorn Milkweed | Asclepias asperula | Dogbane Family | 73 | Jun (peak) |
| 10 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 72 | Jul (rising) |
| 11 | Woodland Strawberry | Fragaria vesca | rose family | 68 | Jun (peak) |
| 12 | Monument Plant | Frasera speciosa | gentian family | 66 | Jul (rising) |
| 13 | Yellow Sweetclover | Melilotus officinalis | Legumes | 61 | Jun (peak) |
| 14 | Rocky Mountain Beeplant | Cleomella serrulata | Spider Flower Family | 54 | Aug (rising) |
| 15 | Alfalfa | Medicago sativa | Legumes | 52 | Jun (peak) |
| 16 | Spotted Fritillary | Fritillaria atropurpurea | lily family | 49 | May (past peak) |
| 17 | Yellow Salsify | Tragopogon dubius | Sunflowers, Daisies, Asters, and Allies | 41 | Jun (peak) |
| 18 | Large-Flowered Triteleia | Triteleia grandiflora | agave and allies | 41 | May (past peak) |
| 19 | Thimbleberry | Rubus parviflorus | rose family | 40 | Jun (peak) |
| 20 | Arrowleaf Balsamroot | Balsamorhiza sagittata | Sunflowers, Daisies, Asters, and Allies | 39 | May (past peak) |
| 21 | Edible Valerian | Valeriana edulis | honeysuckle family | 39 | Jul (rising) |
| 22 | Lewis flax | Linum lewisii | Flax Family | 38 | Jun (peak) |
| 23 | Sacred Datura | Datura wrightii | nightshade family | 37 | Sep (rising) |
| 24 | Star-Flowered Lily-Of-The-Valley | Maianthemum stellatum | agave and allies | 35 | May (past peak) |
| 25 | Upland Larkspur | Delphinium nuttallianum | buttercup family | 34 | May (past peak) |
| 26 | Sulfur Buckwheat | Eriogonum umbellatum | knotweed family | 33 | Jul (rising) |
| 27 | Longhorn Steer's-Head | Dicentra uniflora | Poppy Family | 31 | May (past peak) |
| 28 | Small Camas | Camassia quamash | agave and allies | 30 | Jun (peak) |
| 29 | Greenleaf Manzanita | Arctostaphylos patula | heath family | 30 | May (past peak) |
| 30 | Twinberry Honeysuckle | Lonicera involucrata | honeysuckle family | 29 | Jun (peak) |
| 31 | Richardson's geranium | Geranium richardsonii | Geranium family | 28 | Jul (rising) |
| 32 | Blue Elder | Sambucus cerulea | elder family | 27 | Jul (rising) |
| 33 | Bittersweet Nightshade | Solanum dulcamara | nightshade family | 23 | Jul (rising) |
| 34 | Redstem Stork's-bill | Erodium cicutarium | Geranium family | 22 | Mar (past peak) |
| 35 | Creeping Mahonia | Berberis repens | barberry family | 22 | Apr (past peak) |
| 36 | Saskatoon | Amelanchier alnifolia | rose family | 21 | May (past peak) |
| 37 | Desert Willow | Chilopsis linearis | bignonia family | 21 | Jun (peak) |
| 38 | Scarlet Globemallow | Sphaeralcea coccinea | Mallow and Hibiscus Family | 21 | May (past peak) |
| 39 | Butterfly Milkweed | Asclepias tuberosa | Dogbane Family | 20 | Jun (peak) |
| 40 | Spineless Horsebrush | Tetradymia canescens | Sunflowers, Daisies, Asters, and Allies | 20 | Jul (rising) |
| 41 | Red Baneberry | Actaea rubra | buttercup family | 19 | Jun (peak) |
| 42 | Common Cowparsnip | Heracleum maximum | carrot family | 18 | Jul (rising) |
| 43 | Black Medick | Medicago lupulina | Legumes | 18 | Jun (peak) |
| 44 | Broad-Leaved Sweet Pea | Lathyrus latifolius | Legumes | 18 | Jun (peak) |
| 45 | Shrubby Cinquefoil | Dasiphora fruticosa | rose family | 18 | Jul (rising) |
| 46 | Curlycup Gumweed | Grindelia squarrosa | Sunflowers, Daisies, Asters, and Allies | 17 | Aug (rising) |
| 47 | Poison Hemlock | Conium maculatum | carrot family | 16 | Jun (peak) |
| 48 | Chokecherry | Prunus virginiana | rose family | 16 | May (past peak) |
| 49 | Antelope Bitterbrush | Purshia tridentata | rose family | 16 | Apr (past peak) |
| 50 | Musk Thistle | Carduus nutans | Sunflowers, Daisies, Asters, and Allies | 16 | Jul (rising) |