Right OutsideWeek of October 11 · Calgary
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Forest mushrooms
Watching · Fungi

Mushroom season is warming up

Season Jun 1 to Oct 10Out of season

Late August is when the mushroom year gets interesting, and the trigger is rain. A good soak followed by a few warm days can flush boletes and others up through the spruce duff within the week. Nothing to chase today; when conditions line up, this card will change and tell you.

Fresh caps pushing through duff and moss in the days after rain
Any time; mornings after wet spells are best
Spruce and mixed woods with deep, shaded duff
Rain-triggered; this card watches the weather for you
Look and photograph freely; eat nothing without an expert identification
SourcesGBIF occurrence records within 200 km of Calgary, license-filtered (CC0/CC BY) and effort-normalized, Aug 2026

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Photo: Mykola Lylo · CC BY-SA 4.0 · via Wikimedia Commons
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