In London, I used the Square Foot Gardening technique (well a form of it) promoted by Mel Bartholomew here using a flat pack one square metre plastic square from the Organic Gardening Catalogue guys here and some of their yellow bag vegetable planters here and their green bag potato planters here
From the right: potato planters with potatos, beans and cauliflower, then yellow veg planters with cabbage, aubergine & peppers and various herbs, then to the left, surrounded by rampant nasturtiums and unmown grass, the plastic square. This was divided into 9 plots using 6 garden canes crossed & tied with string: in here were onions, broccoli, tomato, mizuna, rocket, land cress, lettuce, cauliflower and pack choi. Though as you can see here, the brassicas have taken over by June 2009 when this was taken! You can get a lot of crops into a small space if you think it out first - and know which way the sun goes during the day and also know how big this stuff grows to! (as you can see, I got that a bit wrong in 2009!
