The flowers don't look right for a Yucca. Perhaps it could be a type of Cordyline aka Cabbage Palm?
The plant and flower inflorescence shape look right for that. We can't grow them to maturity outdoors here so I don't know too much about them.
Yay! Yep, you're right....cordyline. Interesting that I've not grown that before. When in SoCal, I was finally starting to embrace the whole xeric thing and now here I am in the PNW...lol...
I could be wrong...
and.....
"maybe I should have kept my mouth shut....."
The Urge for Seeds is Strong in This One.....