I mentioned my allotment under the wildlife thread (I have a large resident population of snails) and Hollins asked what I grow, so I thought that I'd answer the question here.
I'm just starting my third year on the allotment, which was fairly overgrown so this will be the first year that I'm cropping all of it.
There were already blackberries, raspberries and rhubarb on the allotment and I've put in a damson, which I'm planning to fan train. So far I'm growing only things which can be planted / sown directly, rather than being started under cover. At the moment I have: onions (autumn and spring planted sets), elephant garlic, broad beans (autumn and spring sown), peas, kale, chard, perpetual spinach, beetroot, raddishes, first and second early potatoes. Still to be planted / sown are: runner beans, French beans, more peas, asparagus peas, slasify, scorzonrea and main crop potatoes (three cultivars).
I've also got a few herbs and some nasturtiums (which I grew in my first year and which have been merrily self-seeding since then) - good flowers for bumblebees. I'm planning to grow some more flowers for the bees this year. At the moment, last year's kale is in flower and is feeding a range of bumblebees and solitary bees.