Do you have a botanical name for Spanish bayonet, so we can advise you
more?

http://www.floridata.com/ref/Y/yucc_alo.cfm
ours has never flowered yet not sure if it even will flower in our
climate,
maybe someone could tell me that too?
Anyway ours is just a single "bush"? since I parted it from the younger
plant not even sure how often they sprout baby plants.

They can produce quite spectacular white panicles in S Devon.
--

and here in Bedfordshire

Nik

cool so I can expect some flowers eventually then.