what can it be?

please a little help with this one

 

Not much to work with Sal!

I'll toss Asphodeline into the ring...................

 

thank you longk , be honest never seen one before not even for sale ....well got few offset

 

Not saying that it is, but the foliage looks the right colour and almost messy enough. If it is you'll get this eventually...................



It can take a wee while to get going, but once established it will form a good clump (if it is Asphodeline).