Normally I grow loads of basil and end up giving it away, but this year has been a total failure. Once the basil grows to about 4 cms it seems to go brown at the bottom and then wilt and die. My first lot was all in one big tub, so I decided to try seperate little pots just in case it was some disease that wiped it all out. The same thing has happened again and I have no fresh basil. To top it off I am looking after my neighbours plants at the moment and she has a fab bunch of basil on show (in fact everything in her garden puts mine to shame and its quite depressing becasue with the same soil, same weather I can't find any other reason than I really have no idea what I am doing )