The average size of an orange tree varies based on the species, planting environment and overall care. Most orange trees average between 25 and 50 feet with a rounded crown, according to Purdue University.
About this Author
Charmayne Smith is a business professional and freelance writer. She has worked in management for successful organizations since 1994. Smith draws on her business background to write articles, and her work has appeared in a variety of online outlets. She holds a degree in business from Cleveland State University.