Vegetable plants come in a wide variety of heights. The average height depends on species and variety. For example, radishes (Raphanus sativus) can grow anywhere from 4 inches to 6 feet tall.
About the Author
Hepzibah Flurge has been writing professionally since 2008. She is a horticulturist and her work appears on various websites and assorted gardening blogs. She holds a Bachelor of Science in horticulture.