Posted: 04/06/2015 at 19:13
OK 4) leave it alone for now, next spring cut it back to ground level and let in grow back.
5) do nothing, it's establishing so be patient.
6) a combination of plants so use the RHS site to pick perennials that will flower according to your tastes and the seasons, bearing in mind you may have to acidify the soil around the rhododendrons and azalea's.
Point, pyracantha need pruning to produce a bushy plant. Cut the leading stems to half the height you want them and at an outward facing bud. They are going for it now in full growth, so accurate pruning will produce new leaders to get the bushy growth. It can be painful, so wear gloves.