I am going to guess it is Nyctanthes, arbor tristis (sorrow tree,parijata).
Do a google search for a picture and see if that looks like it.

Another option would be night blooming jasmine, cestrum nocturnum, which is native to the Caribbean but is grown all around the world. It has small leaves, white flowers and is intensely fragrant at night. Hope this helps!

Jim

Hello again thanks for the help so far have had another talk with my mum and she says she bought it from a garden centre in cyprus and the name she was given for it was pakisatnie night. there is a bit of an argumant going on as mum says it was like a fern and the leaves where what opened at night, which is where the scent came from dad is insisting it was fern like but had flowers. she really wants to find out its proper name so she can buy one. it has a very intense perfume scent. i hope this information helps a bit more thank you to evryone whos come up with suggestions so far.