Only the acid type lemons are grown commercially in the United States with the sweet lemon grown mostly as a novelty.

In California and Arizona the main varieties are Eureka and Lisbon with the Genova coming from Chile.  The Eureka is the dominant variety and tends to mature its fruit in the summer when there is the highest demand  In Florida, the varieties may be categorized as Sicilian types, considered to be in the Lisbon group with the Bearss variety being the most widely grown.