Cactus question - February 11th, 2007 at 02:04 PM
I purchased what I believed to be a barrel cactus about three years ago. It has grown from about 1" in diameter and height, to about 3-4" in diameter and height. About a month ago it started developing what look like warts. Little humps that are growing from the sides. There are eight of them. What is this? It's the first cactus I've ever had, and I don't know much about them except not to water them and they are slow growers.