go to goldenrod and go to the dept. and to sixth floor and keep spending until u get it and plant it
oran berries
You use oran berries.
You need 62 oran and pecha berries
Blue shard
people can give u some. u can find them on the poke walker.
They restore 10 of your pokemon's HP.
Regular BERRIES. (Oran Berries in HeartGold).
after you give the miltank all the seven oran berries (its random the number of oran berries mine was 14 there diffrent oran berries you have to give it some times)they will give you the seal case.
You can find the Seal Case by feeding the Miltank Oran Berries at Route 39
u go left from ecruteak city (johto), go in the farm, talk to the man, then feed miltank lots of oran berries, and finallytalk to the girl on the left ( <that way ) (you need a lot of oran berries)
In Pokemon Gold, Silver and Crystal you need to feel seven berries to the Milktank in Moo Moo Farm. The kinds of berries don't matter. But in the remakes Pokemon HeartGold and SoulSilver the berries fed to it need to be Oran Berries.
Go to Route 38 and heal the miltank whit oran berries if u want the berries the only ways i know how to get them is by your mom or by the goldenrod city Lottery from the big pokemarket at the 6th floor