My courgette plants (grown from seed) growing extremelywell in well rotted garden compost - around 8" deep, along with squash and pumkin plants grown from seed.
The peas and beans are wonderful - pods on peas and flowers on beans - runner and French. Growing outdoor cucumbers and hot chilli peppers ( in pots). I grow beetroot, spring onions, radishes, and Chantanay carrots (in troughs). Worked last year so doing again this year. Really its a flower garden My veg plot is one metre square, but my pot plot is around 2 metres by 1 metre (slate covered), and the troughs put anywhere where there is room.