Found this good article on Growing Veges in Winter:
Winter – the time when you benefit from all those late summer and autumn planted crops – the last of the French beans, lovely heads of green broccoli, Savoy cabbages, carrots, leeks etc. – all should be ready from now on. Well, what to do in the vege garden now that winter is more or less here. Its often hard to get excited about Vegetable Gardening this time of year as the nights are colder and the plant growth slows right down.