With Moonflower and Henna, he unlocked many different bioms (including Swamp) and scouted a lot of new locations.
The first and the most experienced scout in his pack.
He became a mentor at 5 years and 9 months old.
At 6 years and 3½ months old, Wheat refused the heir status because he had realized that he wouldn't be able to lead the pack when it would be needed due to his age. However, Whitebelly allowed him to keep his strip that usually demonstrates its owner's heir status.
At 6 years 7½ months old, Wheat took it off after all.