Roystonea regia: Royal Palm
A row of Royal palms (Roystonea regia)
view on EDIS



How to Cite

Broschat, Timothy K. 2014. “Roystonea Regia: Royal Palm: ENH-732/ST574, Rev. 2/2014”. EDIS 2014 (4). Gainesville, FL.


The royal palm is a large majestic palm that is native to south Florida and Cuba. It is considered cold hardy to about 28°F or USDA Cold Hardiness Zone 10A. This species quickly grows to heights of 50–70 ft., with a spread of 20–25 ft., and has a smooth light gray trunk up to 2 ft. in diameter. It is ideal for landscaping streets, parks, and commercial properties, but becomes too large for typical residential landscapes. This revised 4-page fact sheet was written by T.K. Broschat and published by the UF Department of Environmental Horticulture, February 2014.

ENH-732/ST574: Roystonea regia: Royal Palm (
view on EDIS


Broschat, T.K. and W.G. Latham. 1994. Oxalate content of palm fruit mesocarp. Biochem. Syst. Ecol. 22:389-392.

Broschat, T.K. and H. Donselman. 1987. Effects of fruit maturity, storage, presoaking, and seed cleaning on germination in three species of palms. J. Environ. Hort. 5:6-9.

Elliott, M.L., T.K. Broschat, J.Y. Uchida, and G.W. Simone. 2004. Compendium of Ornamental Palm Diseases and Disorders. Amer. Phytopath. Soc., St. Paul, MN.

Howard, F.W., D. Moore, R.M. Giblin-Davis, and R.G. Abad. 2001. Insects on Palms. CABI, Oxon, UK.

Meerow, A.W. 2006. Betrock's Landscape Palms. Betrock Info. Syst., Hollywood, FL.