Colorado Mushroom Calendar
Mushroom season across Colorado peaks in mid to late summer, when summer rain meets warm soil and sets off the year's main flush. The strongest months in the observation record are May, July, and August. The charts below aggregate iNaturalist observations from 8 towns across Colorado; pick a town for its local calendar.
Towns
8
Best months
May, July, and August
Species tracked
7
The Shape of the Colorado Season
All species and all 8 towns combined — local observations by month.
What Fruits When in Colorado
JFMAMJJASONDMorelKing BoleteMatsutakeChanterelleOysterLobsterShaggy Mane
Shading shows when each species typically fruits within about 10 miles, not abundance. Based on iNaturalist observation trends.
Colorado City Calendars
Track the Season as It Happens
These calendars show typical timing. A free Salish Mushrooms account adds live environmental layers to the Forayz map — soil moisture, soil temperature, snow cover, and recent precipitation, updated daily — so you can see which storms actually soaked the woods.
Common Questions
When is mushroom season in Colorado?
In Colorado the season peaks in mid to late summer. The strongest months in the observation record are May, July, and August.
What mushrooms grow in Colorado?
7 species are tracked across the 8 Colorado calendars, including Morel, King Bolete, Matsutake, Chanterelle, Oyster, Lobster, Shaggy Mane. The grid above shows when each one typically fruits.
For live conditions on an interactive map — recent rain, soil moisture and temperature, recent burns, public land boundaries, and forest types — explore the Forayz map.