Most homes are teeming in the thousands, if not millions, of various types of mold spores and any location that offers adequate moisture will provide it the perfect home. Laundry rooms especially provide the key ingredients to what makes mold grow: moisture, decaying organic material (soiled laundry), warmth, and usually no direct sunlight. Thus, it is not uncommon to find mold on clothes.
Laundry and Mold
It is common knowledge that mold grows most frequently in rooms that serve as a basis for water use. The laundry room and dirty clothes hampers, in fact, are the ideal locations for mold to grow, as they generally provide mold spores daily access to a bountiful supply of decaying organic material (dirt, dust, sweat, food, urine, hair, body oils, etc.) to feed on and, in many cases, moisture.