I just looked it up. There's no conclusive evidence that talking to your plants will help them grow for any reason.While on the CO2 topic, I’ve heard that that plants grow well when you talk to them due to the high amounts of carbon dioxide exhaled onto them.
Random Fact: What kind of alcohol is safe to drink? Ethanol is the only alcohol that is safe to drink currently. To the layman, the term: 'alcohol' is widely used rather than the chemist term ethyl alcohol or ethanol.
Random Fact: Where do they make NFL footballs? Since 1955, the official NFL footballs have been made at the Wilson factory in Ada, Ohio. Each football is handmade from cowhide sourced from Kansas, Nebraska, and Iowa.