For sale here is a 10mL culture of Boletus edulis, the porcini mushroom. I cloned specimens I found on the PNW coast in Fall 2023 and have been improving the culture since. These are massive, delicious and highly sought after mushrooms. They can be grown in permaculture applications by colonizing a spawn block and planting a conifer tree atop it. These projects can take 2 to 5 years to pay off, but will then persist for the life of the tree.
It is not a mushroom typically grown at home, but it is one for the skilled and patient.