The leaves on No 1 are fleshy, say about as thick as Sedum spurium. they are serrated and clasp the stem which is reddish.
No 2 I think is Phlox, and either White Mountain or White Admiral
N03. is P divaricata type as I have never grown P caroliniana (knowingly at least!)
N0.4 Must be Euryops acraeus then as my E. pectinata is in the Alpine house not outside.
No. 5 is a distinct possiblity, but does it come in white? I have no recollection of buying a white version of it.
Thanks muchly though.