I think it's about 4 metres by 2 metres. I plant quite densely compared to what you'll normally see recommended on the back of a seed packet, and to save on space between rows, I built a wooden frame that I can use to walk over and harvest from the top. Probably not very safe, but luckily I don't have to report to the HSE!

I also start them off indoors and plant out early since London has a rather mild climate.

Also: it smells bloody amazing.