Where to get Oran berries in SoulSilver?

Question

Im looking to obtain the Seal case so I need oran berries for the cow.

Answer 1

You can get berries from the juggler in violet city in exchange for shards and then grow them in your berry pots. I believe someone have them to you though the storyline also.

http://bulbapedia.bulbagarden.net/wiki/Oran_(Berry)

Hope I helped

Answer 2

In HGSS
Oran berries are given by a Juggler in Violet City in exchange for a Blue Shard
If you already have one you can grow some more in the berry pot, and can use Gooey Mulch to increase the production or Oran berries! :D
Also, assuming you got the DS version and Pokewalker, you can send a Pokemon to the Refreshing Field area on the Pokewalker. Once you have 300 steps in one day, use the Dowsing Machine and there is a good chance you will obtain an Oran Berry.