Instructions
Explore the world of Johto, and keep an eye out for Apricorn trees. These trees are identifiable by their light green coloring and round tops. While Apricorn trees popped up only on Routes 37 and 42 in the older Pokémon titles, they are found all over the world in SoulSilver.
Examine the tree by pressing the "A" button. You will receive an Apricorn, though the color is random.
Bring your Apricorn to Kurt in Azalea town. Kurt turns your raw Apricorn into a Pokéball.
Take the Apricorn Pokéball with you to battle and capture new creatures. Apricorn balls have special properties not found in mechanical Pokéballs.