There are several varieties of avocados and each have a unique name, flavor, texture and harvest time. The most common type is the Hass avocado, the only year round avocado. The Pinkerton and Gwen are available late winter through to spring and summer. The Reed is available in the summer and early fall, and the Zutano from fall through early winter. Hence you are most likely to find a Hass avocado at your local super market