Great post. I would highly recommend checking out Paul Stamet's work and his MycoGrow products at Fungi Perfecti®: MycoGrow™ mycorrhizal products. I can't vouch for these specific products personally, but I have read his books and I use his MycoMedicinal products, so I can vouch for the quality of his companies work in general.
I do believe that all of his mushrooms are grown organically, but you may want to check to verify that for these specific products. EDIT: This from their homepage: Fungi Perfecti® is Certified Organic by the Washington State Department of Agriculture. In business since 1980, we offer an ever-expanding product line for the mushroom enthusiast.
I do believe that all of his mushrooms are grown organically, but you may want to check to verify that for these specific products. EDIT: This from their homepage: Fungi Perfecti® is Certified Organic by the Washington State Department of Agriculture. In business since 1980, we offer an ever-expanding product line for the mushroom enthusiast.