The Babiri Berry is very rich in its spicy and bitter taste. It was used as medicine in the past. When planted, they take about 72 hours (3 days) to grow. When fully grown, a Babiri tree will have 1-5 berries.
In Pokémon Diamond, Pearl, and Platinum, Babiri Berries are sometimes given out by the lady in Pastoria City. In Pokémon HeartGold and SoulSilver, the player's mother sometimes buys it for you. It can, albeit rarely, be held by a wild Snorunt.