Artichokes are biennial, meaning that they don't produce flower buds (what we eat) until the second season. It is too cold in Saskatchewan to overwinter artichokes, so I had to fool them into thinking they had gone through a mild winter. This is done by keeping the young plants cool (sometimes in the fridge) with much less light.
Sprinkle fresh artichokes with water and store in a container or bag in the fridge.
Artichokes should be cooked before eating.
Some recipes with links here