Foods to look out for in December are:
Vegetables
Artichokes, Jerusalem; beetroot; Brussels sprouts; cabbages; cardoon; carrots (if grown in the south); cauliflower; celeriac; celery; chicory; endive; garlic; kale; Kohl rabi; leeks; lettuce (winter crop); onion; parsnips; potatoes; salsify & scorzonera; spinach; swede; Swiss chard (although on its way out); turnips.
Fruits
Apple varieties - Adam’s pearmain, Ashmeads kernal, Blenheim orange, Bramleys, Charles Ross, Cox, Crispin, D’Arcy spice, Egremont russet, Ellison’s orange, Elstar, Fukin-Ishuki, Gloster, Ida red, Jonagold, Kent, Kidd’s orange red, King of the pippins, Laxton’s fortune, Pixie, Ribston pippin, Red pippin, Spartan, Suntan, William crump.
Chestnuts
Pear varieties - Comice, Concorde, Conference.
Pomegranates; quince.
Meat, fish & poultry
Goose; grouse; hare; mallard; partridge; pheasant; rabbit; snipe; turkey; venison; woodcock; brill; monkfish; mussels; oysters; plaice; scallops; turbot; goose; guinea fowl.
Cheeses
Stilton; Wensleydale, blue.
This is a great website for all things organic http://www.whyorganic.org/involved_organicDirectory_output.asp