Actually the WalMarts in Florida usually do have large green Florida avocados in addition to the Hass avocados from California.
The Florida avocados sold in the stores are OK but don't lend themselves as well to way early commercial picking. My parents had an avocado tree in Punta Gorda FL and the tree ripened avocados from it were wonderful, much better than any from the supermarket.
RE: YOU WON'T FIND THIS AVOCADO AT WALMART