Looks like the yucca known as Spanish Bayonette (not sure how thats spelled). There is a couple of them known for their broad leaves. Without the flowers it will be hard to tell for sure but it is a yucca.

Thanks John. It sat there for three years and didn't make a peep and all of a sudden this year, it shot up and got huge. I guess I am going to have to move it LOL.

Oh they are next to impossible to move or remove. Any shred of root left behind will eventually form into a monster plant. And the roots go way deep. If there is any way to make peace with it where it is - that would be the easy way out.

Thanks for the tip. Maybe moving the Stellas this fall will be easier. :)

As it matures, it will be sending out side shoots expanding to a cluster so moving the stellas is wise.
I kept trying to kill mine but that tap root refuses to die. Supposedly, when it flowers the plant dies but not so..the tap root sends off fresh side growth when the main plant dies after flowering.
Wicked spears!

Oh, i wonder if you could harvest the roots.... In the DR, they cook Yucca for almost every meal. It has TONS of ways to fix it!

Most Latin Americans use the name 'Yucca' for the roots of tapioca plants (genus Manihot). The roots look the same which may be why they use that word but the plants aren't related at all.

Right on, trianglejohn!

It's actually written "yuca". I always get angry when on Top Chef they spell it yucca, which makes people assume you eat yucca root, not the cassava root that indeed also gives rise to tapioca.

And oddly most Manihot species are highly toxic. There's some sort of special treatment done to the roots before you can eat them.

John do you know what kind of tapioca you brought to the swap a few years back was? It is still alive.

It's whatever hardy tapioca Tony sells at Plant Delights. It doesn't make the fleshy roots that are used as food and even though it is deadly poisonous, voles will nibble it down to a nub (but it roots easily from whatever they leave behind).