The Berry Master is in a house on Route 208 in Pokémon Platinum.
Chat with our AI personalities
Talk to the little girl in the berry master's house by Hearthome city
The berry master is just west of Hearthrome city. Unfortunately there is no berry master's wife in the game.
You can't get the Miracle Berry without the Shamin event.
On Route 123
It's in Flaoroma town in the Flower Shop