After 10 years growing ours from a pup, we have a blooming Agave sisalana 'Sisal' with lots of lots of bulbils! These are bare, unrooted, but are super simple to root. They grow slowly but quite large - you can start them in pots, but after a few years you'll eventually want them in the ground. When full mature they can span 6 to 10 feet or more. The leaves are a beautiful agave green.
These are large sized agave, growing to 6 feet tall and 10 feet wide, with 5 foot long by 5 inch wide leaves. Smooth, green leaves with a single spike at the tip. It is slow growing and does not produce offsets. Lives 7 to 10 years, when it puts it's spike up and reproduces via bulbils Plant in full sun - can tolerate partial sun if in pots. Drought tolerant. Hardy to around 25° F and a little lower for short durations.