The Seed Satchel is an item that Link can use to hold various types of seeds, including Ember, Pegasus, and more.
Oracle of Seasons
The Seed Satchel makes its debut in Oracle of Seasons. It is found inside of the first dungeon of the game, Gnarled Root Dungeon. It can hold up to five different types of Mystical Seeds, including Ember Seeds, Mystery Seeds, Gale Seeds, Pegasus Seeds, and Scent Seeds. At first, the Seed Satchel can only hold up to 20 of each type of seed, but Link can receive an upgrade that allows him to carry up to 50 of each seed.
Oracle of Ages
In Oracle of Ages, the Seed Satchel is given to Link by the Maku Tree, full with 20 Ember Seeds.
In Skyward Sword, Seed Satchels hold Deku Seeds to be used as ammunition for the Slingshot. There is a Small Seed Satchel, Medium Seed Satchel, and Large Seed Satchel.
Link obtaining the Seed Satchel in Oracle of Seasons
Sprite from Oracle of Seasons and Oracle of Ages
Link obtaining the Seed Satchel Upgrade in Oracle of Ages