Mushrooms can be deadly, edible, magical, incredibly beautiful but also completely unremarkable. Some of them, the edible ones, are even delicious and many people end up cultivating them out of the desire to have a permanent and constant stock for cooking.
If some species grow easily, in the garden, in the field or in the forest, others are rare and require special conditions to grow and develop properly. Many mushroom breeders use mushroom spores in a special substrate and in a sterile environment. Thus, mushroom spores will grow a white, root-like substance called mycelium, from which mature fungi will develop.
Spores of rare mushrooms that you cannot find in your area, can be bought from manufacturers, which generally preserve them in two forms: spore syringes and spore prints. If the spores are of high quality and have not been contaminated, they can be used successfully, regardless of whether they come from syringes or prints.
As for the substrates suitable for mushroom spores, they range from compacted straw to soil. Also, if you want to grow organic mushrooms, you can use organic substrates and a planting mushroom spore kit available in specialized stores.
If you are a beginner, a mushroom growing kit may be the best solution because you will get everything necessary to experiment and start growing different types of rare mushrooms for cooking.