Name: greene Savannah, GA (Sunset 28) (Zone 8b) I have no use for internet bullies!
It is a type of Agave. If you look under/around the plant you will find many 'babies' that are easy to move/give away/relocate.
People either love or hate this type of plant. (I love them.) If you have small children or pets the pointy bits can be dangerous. I have been stabbed many times while weeding the garden.
Sunset Zone 28, AHS Heat Zone 9, USDA zone 8b~"Leaf of Faith"