Okay, I have 11 mature spineless cactus pads I planted. They all now have at least two new pads growing that are growing well and a few more spuds poking through. I live in Chicago and want them to survive my zone 5 winters, they are suppose to be able to. I also want them to grow pretty big and plentiful. I have never grown this kind before. Don't know anything about them. Did I make a big mistake planting so many, am I going to be badly invade by giant plants, assuming of course they do survive my winters. Also, how do I take a pad off, with knife or just bend a brake off. Will more grow back where the one is taken off. Any help, if would be greatly appreciated. BTW, my little Tatum doesn't eat much of it yet.