Freezing uncooked potatoes is not recommended because they contain too much water. The freezing and defrost process will cause their texture and flavor to become unappetizing. Instead, plan on eating your potatoes within a week or two after bringing them home. Store them in a dry, cool place that is well ventilated.
In addition to potatoes, avoid freezing raw celery, cucumbers, lettuce, peppers, radishes, sprouts, and salad greens.