During your adventures through Lost Odyssey, you may have come across items called "Seeds." You can trade these with Pipots, which are found in pots throughout the game world. Here are the rewards for the number of seeds you give them.

Reward	How to unlock
Adamantis Sword, Adaman Ring	20 seeds.
Gigan Brooch	80 seeds.
Earth Charm	40 seeds.
Pipot Charm	99 seeds.
Power Angle	60 seeds.