This is a bearded yucca plant,
and you can see how big the buds are. We haven't seen any in bloom, which is too bad, because they must be gorgeous. It looks like a yucca plant that we'd have at home (Montana), except the bearded yucca has a trunk, which is covered with strange looking yucca leaves. (someone else might have a better description for it, but this is my blog, so I'm calling it!)