Yucca gloriosa ?;
Spanish Dagger, Moundlily Yucca, Soft-tipped Yucca, Spanish Bayonet or Sea Islands Yucca;

Yucca Species For ID : Kenya : 25OCT16 : AK-32 : 4 posts by 2 authors. Attachments (3)

Yucca Species seen at a resort in the first week of July.

Pl. check with images at Yucca aloifolia L. 

Sorry. More closer to images at Yucca gloriosa L. 

I guess close to Yucca aloifolia L.