Agave isthmensis (blue ~ gray colour) Plant

This is a lovely blue~gray compact agave that I have been growing for a year. It is about 16 or 17cm across now. Lifting the plant out of the pot, there are two pups ready to emerge. It's a tough agave that is hard to kill (it survived in a basement window all winter!). I bring it outdoors in the daytime now, to enjoy the sun. The dots on the lower leaves are just water splashes, from the previous owner who did foliar feeding.