Overview
Colorado's wildflower season runs from February at lower desert elevations to September in the alpine tundra. The state's dramatic elevation gradient — from 3,350 ft in the eastern plains to 14,440 ft summits — creates zones of wildflowers that bloom in succession through summer.
The Rocky Mountain National Park, San Juan Mountains, and Maroon Bells-Snowmass Wilderness are among the most photographed wildflower destinations in the world. The state flower, the Colorado blue columbine, is legally protected from picking on all public lands.
Key Species to Know
Colorado Blue Columbine
Aquilegia caerulea
Colorado's state flower — blue and white blooms with distinctive backward-pointing spurs, adapted for pollination by hummingbirds. Delicate and elegant, found in aspen groves and mountain meadows.
Indian Paintbrush
Castilleja linariifolia
Scarlet to orange bracts surround inconspicuous flowers — one of the West's most recognizable wildflowers. Wyoming's state flower; extremely common in Colorado's mountain meadows.
Fireweed
Chamaenerion angustifolium
Tall spikes of magenta-pink flowers that colonize burned areas and disturbed slopes. A pioneer species after fire, quickly covering devastated landscapes in brilliant pink.
Rocky Mountain Iris
Iris missouriensis
Blue-violet iris flowers on tall stems, often carpeting moist mountain meadows in early summer. Colorado's most dramatic meadow wildflower when blooming en masse.
Seasonal Guide
- May–June: Lower valleys and foothills — wild plum, pasqueflower, and prairie coneflower.
- June–July: Montane zone (8,000–10,000 ft) — aspen clearings bright with larkspur and iris.
- July–August: Subalpine and alpine peak — columbine, paintbrush, and sky pilot.
- August: Maroon Bells and Yankee Boy Basin at peak wildflower season.
Safety Reminder
Colorado's alpine environment can change rapidly — afternoon thunderstorms are daily occurrences in summer. Carry rain gear, start hikes early, and descend from exposed ridges before noon.
Identify it instantly
Found something and not sure what it is? Point your camera with Spotter and get a species identification in seconds — with detailed reference info and species notes.