I bought some Apple Mint about six weeks ago. I have already repotted it once, to a gallon bucket, from a three inch pot. The mint is growing so rapidly that it is outgrowing the gallon pot. So I need to separate it and repot. This is going to sound like a stupid question, but how do I separate mint? Do I just manually force the rootball separate with my hands? Can this kill the plant? Are there things I should keep in mind when I do this? This plant grows so fast I'm thinking of dividing the plant into three or four different segments and putting each segment in its own gallon pot.