
Based on 1,138 research-grade iNaturalist flowering observations in Alaska, Fireweed blooms mainly from July to August, peaking in July. It ranks #1 among wildflowers recorded in the state in our data.
Chamaenerion angustifolium
Fireweed in Alaska by month
Bars show research-grade observations per month. They mix true seasonality with how often people are outdoors, so treat small numbers with caution.
Also in bloom in Alaska in July

Dwarf Fireweed

marsh grass-of-Parnassus

Rice root

Western Columbine
Threeleaf Foamflower

Arctic Butterbur

Common Yarrow

Twinflower
Places to look in Alaska
Arctic National Wildlife Refuge
Tongass National Forest
Chugach State Park
Chugach National Forest
Botanical GardenAlaska Botanical Garden
Denali State Park
FAQ
When does Fireweed bloom in Alaska?
Mainly July–August, with the most records in July.
How common is Fireweed in Alaska?
It ranks #1 by number of iNaturalist flowering observations among wildflowers in Alaska (1,138 records in our sample).