# Ideal Soil Conditions for Growing Truffles
Truffles are a type of fungus that grows in the soil on the roots of host trees. Certain trees, including European hazelnut and holly oak, serve as host trees for truffles. Edible truffles, such as the French black truffle and the Italian white truffle, are prized as gourmet delicacies.
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Features
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Truffles require well-drained, moist, alkaline soil with a pH level between 7.5 and 8.3. If the soil is too acidic, the addition of lime can slowly raise the pH level. Add a layer of organic mulch to prevent temperature extremes.
Time Frame
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After a year of repeated lime treatments, the soil should be sufficiently alkaline. According to the North Carolina Cooperative Extension Service, growers can wait until the pH level reaches 7.9 before planting host trees, to prevent competing fungus from developing. During the first two years, irrigate the soil to maintain moisture levels.
Benefits
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Truffle production requires few soil amendments, fertilizers, or pesticides. According to Oregontruffles.org, truffles benefit their host trees by helping the roots absorb water and nutrients.
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