I know they are ink caps and I'm not interested in trying to grow edibles in my garden. I have way too much mushroom territory and hot spots for hunting which gives me exercise and motivation. Truthfully.....any shroom is a great sign of breaking things down and your in the zone. I'm too scared to venture out of the normal Morel zone. Too many false.suchen said:Having been a long time mushroom nerd, I can tell you that those mushrooms are inky cap mushrooms which are saprobic. That means they do break down wood, grass, etc into more usable organic matter. For your best shot at cultivating beneficial mushrooms in your garden, look up the "liquid culture" method. Spray the resulting live mycelial culture directly on the wood chips, mulch, grass clippings, manure, etc.