hi mike - recent addition to my herbal window box (all legal herbs by the way

is vietnamese corinander, its not true coriander - a member of the mint family I think but the leaves grow back after u pick them and as the plant is perenial it grows back year after year.
The leaves have a very strong coriander flavour - a little goes a long way. I bought a plant off ebay for a couple of quid and presently taking loads of cuttings to increase my stocks. This is the genuine stuff for far eastern cooking but I use it in my BIR curries and is very acceptable substitute
Mind you for 50p I can get a big bunch of the real stuff from down my local Asian grocers

Cheers - Kev.