? . . . I hop thats the right spelling . . . any old how, had a few good days, over crowding my 'veggie borders'. Had some successes

and some dismal failure

and a few 'could do betters'

that, with some TLC will probably make it?
A friend loaded me with plants the other day, mostly flowers . . . potted them in large containers for Hazel today, I have to admit, I'm looking forward to their colour. One of the items; 3 climbing nasturtium plants, got the perfect setting in a rustic corner and an old trellis.
Question; I understand nasturtiums are edible in salads, does this include the climbing variety? Is it leaves and flowers that are edible, is it worth it, and what is the flavour, I thought some one once said peppery?
One of my successes that has turned into a disaster

I has a lovely tray of sweet peppers growing away, another couple or three weeks and they would be ready for planting. Over the past week they have been raided, in green house with door open 24 hours. Three or four per night cleanly cut at the stem base, no sign of foot marks, no debris, just gone. I now have 4 left of 2 dozen seedlings. Any ideas . . . I've replanted seeds . . . a bit late, will they be OK?
The three that are left I have covered with netting . . . all to late
CJS