I don't know what the semp is but I have to find out, it's gorgeous!
The Begonia looks like a cross with Begonia masoniana 'Iron Cross' which I happened to be lusting over last night. There's a Begonia sp. on Top Tropicals which it might have been crossed with!
http://toptropicals.com/catalo...
The next looks like Helleborus x sternii, mine has a little red colouring on the backs of the petals but the leaves look correct and not all of them have the colouring.
http://www.google.co.uk/search...
The last looks like Melianthus major or similar, one I had but lost, it barely grew here.
http://www.google.co.uk/search...
