Question

I have obtained a few throughout the game and forgot where. Since theres no stores or anything to pick them from, I have no idea where to get them for the seal case at the moomoo milk farm...

Would also be nice to know where to get blue shards to trade for them.

Answer 1

Besides Berry Planter, try the daily drawing in the department store if you have a large amount of money. You can get other berries from that in addition to cheap balls and possibly a TM. To get shards, use Rock Smash on rocks. You will sometimes find items (and Pokemon.) The most common are Max Ethers, Revives, and Shards.

Answer 2

Except the Blue Shards, try using Berry Planter