Amity Square(walk 200 steps and your Pokemon might be holding the berry)
It is possible to obtain a Custap berry in Pokemon Pearl. To get it you have to trade from Ruby, Sapphire or Emerald version.
you spelled pearl wrong
Make a berry into a dry poffin.
No such thing.
Occa berry.
Well there should be and if there is, the berry master is on the Orebough side of Hearthome. Hope this answers the question!
east of hearthome city
There is only one berry house throughout the whole of Pokemon diamond/pearl but there is a flower shop where you can get free berries in floaroma town.
black berry 8120
the same place as in diamond.
all of 'em
If you are referring to the Black Berry Pearl, it can range from $50 to $300. I recommend checking either your local craigslist or eBay.