I am back in Florida. I visited my friend in Jacksonville. I left her a small piece of cactus 2 years ago. This is how much it has grown. It got too big for its pot, so I ended up planting it outside
This guy is very prickly. I got stuck a few time, while planting it into the ground. All I can say, it's a very angry cactus. I can imaging planting a bunch of them around my house to keep burglars away.