A few years ago, I bought about 10 Tesco pots of Thyme and planted it
out en masse.

Initially, it did flop horribly but then grew properly and lasted about
4 years. However, the flavour was inferior after a year or so.

Steve Harris - Cheltenham - Real address steve AT netservs DOT com
A useful bit of gardening software at http://www.netservs.com/garden/