I have a nice sized ice cream growing in my back yard. Theres about 7 or 8 pups growing with it. They are growing amazingly fast. I really don't want such a large clump. Id like just a single stalk. Can I just (gulp..) slash down the pups (dont hate me)? I dont want a jungle, and it appears they are well on their way. Do I need to leave one pup as a replacement?