The earliest ripening pecan we have under trial is Warren 346 (photo at right). From the looks of the dry shuck, this pecan was probably mature at least a week ago in late August. Warren 346 originated in Dale Warren's native pecan grove near Chillocothe, MO.
Henning is a cultivar that originated near Brunswick, Mo that probably ripened about the same time as Mullahy (photo at right). The nut is small and seems to be a favorite for wildlife predation.
Goosepond was also found near Brunswick, MO (photo at right). But for an early nut, this pecan has good size. At this point, about 50% of the nuts on the tree have split their shucks.
Osage has also started to split shuck (photo at right). At this date, about 25% of the Osage nuts have split open. Osage is the earliest ripening pecan cultivar released by the USDA Pecan Breeding Project.