Posted: 23/04/2015 at 11:00
I've always found Choisya to be pretty slow growing, although a very nice plant, unless you buy a really big one at the garden centre it'll be a while before it does much.
What about something like a nice Hebe, they grow very fast will be decent sized shrubs in 1 season and have nice flowers that the bees love. Can get them in some great purpley colours too. Although this depends on the ultimate size you want it to grow, if you want it to grow taller than the wall then it's not good.
Ceanothus are a good shout, as they grow pretty quickly and are very pretty.
Another fast growing pretty evergreen would be a tree lupin.
Pyracantha might be nice with their orange/red berries.
Although not evergreen a couple of philadelphus (mock orange) might be stunning, either side of the drive. The smell would be amazing when in flower.
No flowers again but a couple of photinia would be add nice colour.