At Black Trumpet, mushrooms have always done more than fill our grow rooms. They build soil. Through a SARE-funded research grant, we're testing whether that same fungal power can accelerate soil recovery after disaster and give small farms a low-cost path back to healthy ground.
Following Hurricane Helene, many Western North Carolina farms lost their topsoil entirely, stripped down to rock, sand, and sediment by flooding and landslides. Rebuilding that soil the traditional way, with truckloads of compost, is slow and expensive. So we're trying something different: inoculating wood chips and debris from downed trees with wine cap mushroom spawn, then letting the mycelium do the work of breaking down lignin and cellulose into rich, living organic matter, much the way fungi rebuild the forest floor after a storm.
We're running this trial across four cooperating farms in Fairview and Weaverville, comparing mushroom-inoculated mulch against straw and fabric covers, then planting butternut squash directly into it. We're tracking everything from soil fertility and microbial activity to how the squash themselves perform, with leaf tissue sampling and visual crop scoring as our key measures. If it works, it offers farmers hit by disaster, or anyone rebuilding depleted ground, a faster, cheaper way to bring soil back to life using materials most farms already have on hand: fallen trees and mushroom spawn.
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