Like Jill, I'm reasonably certain mine is 'Arp' — I've never been 100% sure, it was in a 3" pot marked "Rosemary" when I planted it 11 years ago, and it never quits through snow and heat. It recently finished a heavy winter bloom and I just lopped off about 25% of it to keep it roughly 6' x 6'. I love that it provides late winter/early spring forage for bees when nothing else is awake.
I'll let the trimmings dry in the wood mulch and then stomp the dried needles off. Makes a fragrant walkway for awhile.
