go to the flower shop in golden-rod city
Chat with our AI personalities
It's called the Squirtbottle and can be obtained in the Flower Shop next to the gym in Goldenrod City
Use the squirtbottle on it.
no you can trade soulsilver pokemon to black
You CANNOT LEGALLY download Pokemon Soulsilver.
You'll need to trade for it from Pokemon HeartGold. It is not avilable in the wild in Pokemon SoulSilver.