When plants are subjected to extended periods of absolute silence, they tend to do less well than when sounds are present.

When plants are exposed to recorded or electronic sounds, they tend to do better, regardless of whether the sounds themselves are pleasant are unpleasant.

When plants are verbally praised or affirmed during the growing cycle, they frequently thrive in a visible, measurable way.

When plants are verbally abused or condemned during the growing cycle, they often become stunted and sickly.