Caffeine, depending on the dosage, leads to abnormalities in plant development, acccording to Bio.net. It will not necessarily help a plant grow. It also increases the calcium metabolism of plant cells.
About this Author
Aileen Clarkson has been an award-winning editor and reporter for more than 20 years, earning three awards from the Society of Professional Journalists. She has worked for several newspapers, including "The Washington Post" and "The Charlotte Observer." Clarkson earned a Bachelor of Arts in journalism from the University of Florida.