
Based on 1,234 research-grade iNaturalist flowering observations in Oregon, Fireweed blooms mainly from July to August, peaking in July. It ranks #7 among wildflowers recorded in the state in our data.
Chamaenerion angustifolium
Fireweed in Oregon 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 Oregon in July

Subalpine Mariposa Lily

Columbia lily

Sagebrush Mariposa Lily

Pipsissewa

Scouler's Harebell

Western Columbine

Pearly Everlasting

Showy Milkweed
Places to look in Oregon
National ForestWillamette National Forest
Mount Hood National Forest
National ForestDeschutes National Forest
Hoyt Arboretum
Leach Botanical Garden
Umatilla National Forest
FAQ
When does Fireweed bloom in Oregon?
Mainly July–August, with the most records in July.
How common is Fireweed in Oregon?
It ranks #7 by number of iNaturalist flowering observations among wildflowers in Oregon (1,234 records in our sample).