Extract from the Telegraph:
"Ramsay said he had spoken to the Prime Minister Gordon Brown briefly about the issue and warned that buying food from abroad made cooks lazy.
"If we don't restrict our movements within this industry of seasonal produce only, then the whole thing will spiral out of control," he told the BBC.
He criticised fellow celebrity chef Delia Smith for her support of ready-made food and canned goods.
"I would expect students struggling on £15 a week to survive eating from a can but the nation's favourite, all-time icon reducing us down to using frozen, canned food - it's an insult," he said.
"And it makes our lives, from a chef's point of view, a lot harder. Here we are trying to establish a reputation across the world for this country's food and along comes Delia and tips it out of a can. That hurts."
Here is a list of which vegetables, according to the food website Eat the Seasons, are in season and when:
January - beetroot, brussels sprouts, parsnip, apples
February - cauliflower, chicory, leeks, pears
March - purple sprouting broccoli, rhubarb, spring onions
April - jersey royal new potatoes, radishes, watercress
May - asparagus, spinach, spring onions
June - artichoke, carrots, courgettes, runner beans
July - broad beans, cucumber, onions
August - peas, potatoes, raspberries, plums
September - butternut squash, marrow, blackberries
October - celery, kale, chestnuts, elderberries
November - pumpkin, swede, quince, walnuts
December - turnips, leeks, apples"