The average height of a tomato plant grown with water depends on the variety and type of tomato. TomatoFest explains that determinate plants will stop growing at approximately 3 to 4 feet, while indeterminate plants will continue to grow throughout the entire season, reaching 6 to 12 feet.
About this Author
Marie Notnats enjoys learning about new topics and teaching people new skills. She has been writing professionally since 2008. She is a professional horticulturist with a Bachelor of Science degree in horticulture from Brigham Young University. She writes for About.com, Examiner.com, eHow, and assorted gardening blogs.