Vegin' Out (again)

Every year I set myself the seemingly simple task of growing something edible and every year, without fail, I balls it up.  Herbs, chillies, edible flowers, I've tried them all to no avail.  Maybe this time will be different, probably not, but some of these caught my eye:
http://www.guardian.co.uk/lifeandstyle/gardening-blog/2011/oct/07/new-vegetable-varieties