60 wildflowers were recorded blooming in Washington in June in our iNaturalist sample; 17 of the top 50 are at their peak this month. The list is ranked by number of research-grade observations.
Top wildflowers in June

Purple Foxglove

Western Columbine
Threeleaf Foamflower

Pacific trillium

Poison Hemlock
Thimbleberry

Columbia lily

Fireweed

Salal

Pacific Bleeding Heart
Avalanche lily

Orange Honeysuckle
All wildflowers blooming in Washington in June
| # | Species | Scientific name | Family | Obs. | Peak in state |
|---|---|---|---|---|---|
| 1 | Purple Foxglove | Digitalis purpurea | Plantain Family | 584 | Jun (peak) |
| 2 | Western Columbine | Aquilegia formosa | buttercup family | 505 | Jun (peak) |
| 3 | Threeleaf Foamflower | Tiarella trifoliata | saxifrage family | 422 | Jul (rising) |
| 4 | Pacific trillium | Trillium ovatum | Herb-Paris, False Hellebores, Trilliums and allies | 394 | Apr (past peak) |
| 5 | Poison Hemlock | Conium maculatum | carrot family | 326 | Jun (peak) |
| 6 | Thimbleberry | Rubus parviflorus | rose family | 323 | May (past peak) |
| 7 | Columbia lily | Lilium columbianum | lily family | 322 | Jul (rising) |
| 8 | Fireweed | Chamaenerion angustifolium | evening primrose family | 312 | Jul (rising) |
| 9 | Salal | Gaultheria shallon | heath family | 294 | Jun (peak) |
| 10 | Pacific Bleeding Heart | Dicentra formosa | Poppy Family | 287 | May (past peak) |
| 11 | Avalanche lily | Erythronium montanum | lily family | 275 | Jul (rising) |
| 12 | Orange Honeysuckle | Lonicera ciliosa | honeysuckle family | 267 | May (past peak) |
| 13 | Herb Robert | Geranium robertianum | Geranium family | 260 | May (past peak) |
| 14 | Bride's Bonnet | Clintonia uniflora | lily family | 259 | Jul (rising) |
| 15 | Ocean spray | Holodiscus discolor | rose family | 255 | Jul (rising) |
| 16 | Western Bunchberry | Cornus unalaschkensis | Dogwood family | 250 | Jun (peak) |
| 17 | Creeping buttercup | Ranunculus repens | buttercup family | 226 | May (past peak) |
| 18 | Western Starflower | Lysimachia latifolia | primrose family | 222 | May (past peak) |
| 19 | Common Yarrow | Achillea millefolium | Sunflowers, Daisies, Asters, and Allies | 218 | Jul (rising) |
| 20 | Sagebrush Mariposa Lily | Calochortus macrocarpus | lily family | 204 | Jun (peak) |
| 21 | Lawn daisy | Bellis perennis | Sunflowers, Daisies, Asters, and Allies | 198 | Apr (past peak) |
| 22 | Glacier Lily | Erythronium grandiflorum | lily family | 198 | May (past peak) |
| 23 | Oxeye Daisy | Leucanthemum vulgare | Sunflowers, Daisies, Asters, and Allies | 197 | Jun (peak) |
| 24 | Rugosa Rose | Rosa rugosa | rose family | 190 | May (past peak) |
| 25 | Showy Milkweed | Asclepias speciosa | Dogbane Family | 168 | Jun (peak) |
| 26 | Little Prince's Pine | Chimaphila menziesii | heath family | 165 | Jul (rising) |
| 27 | Spotted Coralroot | Corallorhiza maculata | Orchids | 159 | May (past peak) |
| 28 | Field Bindweed | Convolvulus arvensis | bindweed family | 159 | Jun (peak) |
| 29 | Fringe Cups | Tellima grandiflora | saxifrage family | 152 | May (past peak) |
| 30 | White Brodiaea | Triteleia hyacinthina | agave and allies | 152 | Jun (peak) |
| 31 | Common Selfheal | Prunella vulgaris | Mint Family | 151 | Jul (rising) |
| 32 | Twinflower | Linnaea borealis | honeysuckle family | 151 | Jul (rising) |
| 33 | Common Beargrass | Xerophyllum tenax | Herb-Paris, False Hellebores, Trilliums and allies | 129 | Jul (rising) |
| 34 | Red Clover | Trifolium pratense | Legumes | 128 | Jun (peak) |
| 35 | Hooker's onion | Allium acuminatum | amaryllis, onions, and allies | 127 | Jun (peak) |
| 36 | Arrowleaf Buckwheat | Eriogonum compositum | knotweed family | 125 | May (past peak) |
| 37 | Coastal Manroot | Marah oregana | gourd family | 121 | May (past peak) |
| 38 | Common Snowberry | Symphoricarpos albus | honeysuckle family | 119 | Jun (peak) |
| 39 | Candy Flower | Claytonia sibirica | Pussypaw Family | 119 | Apr (past peak) |
| 40 | White Clover | Trifolium repens | Legumes | 118 | Jun (peak) |
| 41 | Common Cowparsnip | Heracleum maximum | carrot family | 115 | Jun (peak) |
| 42 | Hairy Vetch | Vicia villosa | Legumes | 113 | Jun (peak) |
| 43 | Pipsissewa | Chimaphila umbellata | heath family | 113 | Jul (rising) |
| 44 | Pinesap | Monotropa hypopitys | heath family | 108 | Jun (peak) |
| 45 | Shortspur Seablush | Plectritis congesta | honeysuckle family | 101 | May (past peak) |
| 46 | Checker Lily | Fritillaria affinis | lily family | 99 | May (past peak) |
| 47 | Bittersweet Nightshade | Solanum dulcamara | nightshade family | 96 | Aug (rising) |
| 48 | Rose Spirea | Spiraea douglasii | rose family | 95 | Jul (rising) |
| 49 | Salmonberry | Rubus spectabilis | rose family | 94 | Apr (past peak) |
| 50 | Yellow Iris | Iris pseudacorus | iris family | 94 | May (past peak) |