A bloom calendar for Iowa built from 11,562 research-grade iNaturalist observations of plants in flower. July is the busiest bloom month. Pick a month to see what's flowering, or open a species for its state-by-state timing.
By month
Iowa wildflower calendar (top 40)
Fewer More observations (relative to each row's peak month)
Activity by month (all species)
Most-photographed wildflowers in Iowa
Dutchman's breeches
Bloodroot
Virginia bluebells
Red Columbine
Tall Bellflower
Virginia Springbeauty
black-eyed Susan
Hoary Vervain
Wild Bergamot
Snow Trillium
White Snakeroot
Butterfly Milkweed
Great Blue Lobelia
Grey-Headed Coneflower
Partridge Pea
New England aster
