Q&A for How to Grow Portobello Mushrooms

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  • Question
    How do you get spores from mushrooms?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    The process works the best with gilled mushrooms. To create a spore print, cut off the stalk of a fresh mushroom and lay the gill side down in a glass container and cover. Allow 6-12 hours for spores to be released and collect them from the glass.
  • Question
    Can you grow portobello mushrooms at home?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    Yes, actually mushrooms grow the best inside. Obtain mushroom spores and a growing tray. Fill the tray with compost materials and sprinkle approx 2 cups of spores on the top. Keep the tray moist and in the dark.
  • Question
    What are the best mushrooms to grow?
    Maggie Moran
    Home & Garden Specialist
    Maggie Moran is a Professional Gardener in Pennsylvania.
    Home & Garden Specialist
    Expert Answer
    While many types of mushrooms are relatively easy to grow on your own, button mushrooms are widely accepted as a wonderful beginning plant.
  • Question
    Do I need to lower the temperature to about 16.5 degrees Celsius to get the portobellos to fruit?
    Susan Butler
    Community Answer
    Mushrooms don’t have chlorophyll, which means they don’t get any nutrients and energy from the sun. You have to keep them at the right temperature of 18-21 degrees Celsius to get them to fruit.
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