if you're going to use roundup use it according to instructions, not concentrated. If you use it too strong the top growth dies off too quickly to allow the poisonous stuff to reach the roots.
i think that is rhododendron. but I've no idea which one
snap punkdoc, i think the other campanula is glomerata, couldn't think of the word before.
2, I have no idea at all. wouldn't be surprised if acid lover, it's got a look about it
that's rather lovely, don't rush into changing it
the first a hypericum
the first of the purples a Campanula, garganica I think
and the tall pink one Persicaria, probably amplexicaulis
a pleasure BloodRose
Have you got any more of the first one, showing shape of bush, flower in focus, arrangement of leaves. and is it flowering now? how big is it. It's not Clerodendron trichotomum but I'm not familiar with other species.
the leaves look quite yellow, are they or is the light?
we think so Liri