I inherited many of these fragrant shrubs and am offering them for trade or whatever. They supposedly make a nice 6-8' hedge or specimen and are covered with white flowers in the late spring. They should be planted in a sunnier spot than where they are now. I don't know the species, but saw a flower or two this year. If you have shade plants to trade, I'd be interested in them; if not, you are welcome to them anyway. You can come get them or I can send them to you bareroot. (Note: I haven't tried to dig them up yet).

Some links:

http://en.wikipedia.org/wiki/Mock-orange

http://www.greenwoodnursery.com/page.cfm/35519