There seems to be a lot of interest in growing potatoes in containers. I did have details here a while ago so I am putting them in again.
I used a large plastic bin we had used for chicken food, I out a small layer of general purpose compost in the bottom. As the seed potato was fairly large I cut it in half and planted them a little way apart in He bottom. As this was in the greenhouse to start, as they grew I added more compost as you would if earthing up outside.Once they got too tall I put them outside but with fleece ready should we get a frost, at this time I had to support the foliage. We had almost a gale which damaged the foliage so I harvested earlier than I intended but you can see I got a very good crop from the one seed potato.