Yes...anemically grown wheatgrass (indoors in poor soil0 will undoubtedly grow mold. Many poeple that think they are having a "detox" reaction to wheatgrass are actually reacting to toxic mold.
Growing wheatfreass outdoors like I suggested with the aid of diluted ocean water, will grow a grass that is immune to disease. interesting that high minerlized plants makes a plant immune to disease....is it possible that this characteristic just may be passed onto humans?