I recently added some spent oyster mushroom block to a mix of straw & boiled iris roots (boiled to help them break down faster because they are pretty much indestructible) & the mushrooms seem to love the substrate! Considering irises are poisonous, would it be safe to eat the mushrooms growing on them?
Oh, sure, you could do that. Or you could eat some pie. While reading this tiny ad:
Edible Landscaping With A Permaculture Twist/ Second Edition - Kickstarter
