Rhododendrons, Azaleas, Pieris. Leucothoe...there are more, of course, but those are the most commonly found ones.

All of the above plus Camellia, acers, blueberries.

Sorted, thanks spritz. Came here looking for answer on Cordys but saw this question after just asking a similar one on Clarice's Pieris pic! Now I know to use this soil of which I have a bag outside:0)

You're welcome, Ob. :-))

Oh - and Kalmia latifolia as well as some heathers, as well as that red lantern bush - can't think of its name...errr...HELP!! Senior moment!!