Some fruits and vegetables that grow underground are potatoes, carrots, turnips, beets, sweet potatoes, radishes, onions, and garlic.
carrots or potatoes
soil
They grow vegetables there
potatoes
potatoes,yams
Radish. Pear and apple are both fruit that grow on tree's potato and radish are both vegetables and both grow underground in soil.
most vegetables, as including corn, grow well in acid soil and acidic soil isn't a problem for them.
Rich
Yes the onion grows under the soil.
The soil is useful to grow plants - trees, flowers, grass, vegetables, fruits, crops, etc. in.
All plants and vegetables. Fruits are grown in soil too. In the other aspect, potatoes and tubers are grown in the ground. Some foods that grow under the soil include radishes, potatoes, carrots, turnips, and cumin.
Your clay will likely be too basic to grow vegetables. You can buy a very cheap soil tester at a hardware store and it will give you a reading. Once you apply the needed additives you test the soil again to see if it will then be fertile.
Soil is what gardeners grow there vegetables in, potters don't use it -- they use clay from the ground, which is not the same thing as soil.