The Best Mushrooms Growing In Raised Garden Bed References. In decomposing organic matter, mushrooms increase the availability of nutrients to plant roots, thus contributing to. Though raised beds often have better drainage than ground beds, an attentive gardener will make.

Creating raised beds allows you to control the soil composition and drainage, which can be beneficial for growing mushrooms. But some toxic mushroom varieties act as a threat to other vegetables and plants. Or do they bring benefits to the garden?