Carolina Cherry Laurel, Prunus caroliniana, is hardy to zones 7-10. Living in Rogers County you would be considered the very northern edge of the hardiness range of this species. Placing them in a more protected area of the landscape will help with being successful with this species. Severe winters, like we've had a few times over the past few years, could result in winter kill. 

Another related species that is slightly more cold tolerant is the common or English cherry laurel, Prunus laurocerasus. 

For additional assistance feel free to contact your local Rogers County OSU Extension Center.

Rogers County OSU Extension Center
200 South Lynn Riggs Blvd.
Claremore, OK 74017
Monday - Friday: 8 a.m. - 5 p.m.
Phone: <personal data hidden>, https://extension.okstate.edu/county/rogers/horticulture.html