You can plant St. Augustine and Centipede grasses together; however they do not coexist well. Centipede grass has a more robust root system and does not require the attention that St. Augustine does. In time, the Centipede grass will choke out the St. Augustine.
About this Author
Lisa Larsen has been a professional writer for 18 years. She has written radio advertisement copy, research papers, SEO articles, magazine articles for "BIKE," "USA Today" and "Dirt Rag," newspaper articles for "Florida Today," and short stories published in Glimmer Train and Lullwater Review, among others. She has a master's degree in education, and is a member of the National Society of Collegiate Scholars.