Field trials at the University of Florida's Gulf Coast Research & Education Center (Bradenton, FL) in 1994 revealed Begonia semperflorens cultivars are not consistent within series groups.

Bedding plant specialists T.K. Howe and W.E. Waters accordingly conclude definitive selection is best made by individual cultivar.

Their evaluation of "Fibrous-Rooted Begonia Cultivars for Landscapes Over Two Seasons" supercedes Tija and Black's 1980 listing , though comprehensive, cites many cultivars no longer used.