Wyoming in bloom

Wyoming bloom calendar

Darker = more flowering sightings that month. Based on iNaturalist research-grade observations in Wyoming marked “Flowering,” as of October 17–23, 2026. Garden flowers have few records because research-grade data leaves out planted ones.

Families on this list

The plant families with the most flowers on this list, from iNaturalist taxonomy. Within each family, the most-observed flowers come first.

• Asteraceae (15): Common yarrow, Creeping thistle, Upright prairie coneflower, Common sunflower, Musk thistle, Rubber rabbitbrush, Pearly everlasting, Yellow salsify and 7 more
• Rosaceae (9): Roses (genus Rosa), Thimbleberry, Chokecherry, Virginia strawberry, Shrubby cinquefoil, Prairie smoke, Common ninebark, Greene's mountain ash and 1 more
• Ranunculaceae (8): Red baneberry, Blue columbine, Prairie pasqueflower, Columbian monkshood, Sagebrush buttercup, Hairy clematis, Purple clematis, White globeflower
• Fabaceae (6): Red clover, Yellow sweetclover, Alsike clover, Wild licorice, Timber milkvetch, Tufted milkvetch
• Liliaceae (6): Glacier lily, Gunnison's mariposa lily, Yellow fritillary, Sego lily, Spotted fritillary, Garden tulip
• Ericaceae (5): Woodland pinedrops, Bearberry, Pipsissewa, Western bog laurel, Grouse whortleberry
• Polemoniaceae (5): Scarlet gilia, Spiny phlox, Narrow-leaf mountain trumpet, Sky pilot, Flowery phlox
• Orchidaceae (4): Western rattlesnake plantain, Spotted coralroot, White bog orchid, Pacific coralroot
• Boraginaceae (4): Hound's-tongue, Silky phacelia, Ballhead waterleaf, Mountain bluebells
• Orobanchaceae (4): Elephant's-Head lousewort, Giant red paintbrush, Sickletop lousewort, Bracted lousewort
• Asparagaceae (3): Star-flowered lily-of-the-valley, Great Plains yucca, Common starlily
• Caprifoliaceae (3): Twinberry honeysuckle, Common snowberry, Utah honeysuckle
• Polygonaceae (3): Sulfur buckwheat, American bistort, Cushion buckwheat

Shortlists by growing conditions

Flowers on this list whose USDA PLANTS characteristics data gives the rating shown. USDA only rates some species, so these lists are not complete.

• High drought tolerance (12): Yellow sweetclover, Plains pricklypear, Yellow salsify, Creeping mahonia, Bearberry, Sulfur buckwheat, Common snowberry, Arrowleaf balsamroot, Great Plains yucca, Scarlet globemallow, Prairie smoke, Common ninebark
• High moisture use (suits wet spots) (17): Fireweed, Thimbleberry, Common cowparsnip, Twinberry honeysuckle, Western blue flag, American bistort, Elephant's-Head lousewort, Richardson's geranium, Alsike clover, Columbian monkshood, Wild licorice, Western yellow pond-lily and 5 more
• Rapid growth rate (20): Red clover, Fireweed, Thimbleberry, Yellow sweetclover, Common sunflower, Plains pricklypear, Chokecherry, Pearly everlasting, Yellow salsify, Scarlet globemallow, Western blue flag, Alsike clover and 8 more

How we picked these flowers

We started from iNaturalist's research-grade sightings in Wyoming, most-observed first, left out grasses, sedges, trees and other plants with tiny or wind-pollinated flowers (plus poison ivy), kept at most three species per genus, and added Wyoming's official flowers, plus flowering shrubs and trees with at least 3 garden or 10 wild iNaturalist records in Wyoming and popular garden flowers that iNaturalist users record growing in Wyoming. Every flower needs a CC0 or CC BY photo.

Rare plant list: Wyoming has no state law listing endangered or threatened plants, so we show NatureServe's Wyoming ranks instead.
Invasive plant list: Wyoming state designated noxious weeds (W.S. 11-5-102(a)(xi)), as listed by the Wyoming Weed & Pest Council