Posted: 14/09/2013 at 18:25
You live in quite a mild part of the UK as I do.
Bay will be fine over winter. Don't do anything with this
When Foxgloves foliage have been damaged by the frost or if it looks tatty then cut it down.
Senetti is hardy to about -1 or -2c and probably will not survive the winter (always best to take cuttings or buy new)
Rudbeckia is completely hardy, again just cut it down when its passed its best
Coreopsis - as above
Helenium - as above
Marguerites are not hardy in the UK and as with Senettis its best to take cuttings or buy new
Osteospermum sometimes overwinters but dont get your hopes up
Calamintha - same as Rubeckia etc
Hope this is of some help