Posted: 16/05/2015 at 22:14
I had one in my old garden, in clay soil. It used to flower profusely but it was only ever a central stem with 'branches' (not like tree branches) off of it. It only got to about 2.5 feet so I don't think it will grow to provide a screen quickly.
I was going to suggest pyracantha like Obelixx as it does grow fast, has flowers and berries. I cut mine back to an inch wide stem and now its 9 feet tall and screens from the neighbours well.