How to Grow Pioppini Mushrooms

Order sawdust inoculated with pioppini mushroom spores. This can be found online at fungi-interest websites.

Soak cardboard in water. The cardboard should be at least two feet by three feet to provide enough room for growth.

Peel apart the layers of the wet cardboard until the ribbed side is fully exposed.

Roll the ribbed side in sawdust, fully coating it.

Roll the piece of cardboard into a burrito shape with the sawdust coating inside. Hold the ends together with paper clips, staples or tape.

Place in a cool location. Pioppini mushrooms grow best at temperatures between 60 and 64 degrees Fahrenheit with a relative humidity of 95 percent. You can place these cardboard rolls in a dark area of your garden as long as the temperature stays within the mushrooms' preferred range. Otherwise, place them in a dark corner of a greenhouse.

Keep the area moist. Mist the cardboard daily to encourage the growth of spores and mycellium.

Let the mushrooms grow. Pioppini mushrooms are a slow-growing variety and take up to 100 days to mature. Continue to monitor the temperature and humidity of the cardboard rolls.