Oh yes, I am starting with a superb organic soil, and I will amend it regularly to make sure the plant has all it needs nutritionally to go. Doing 3 liter pots I think will help with economics, as the volume needed won't be like building a full blown garden bed.

I wasn't aware of the sunlight on the roots issue. I will definitely take that into consideration. Most likely I will line the inside of the container with something, maybe newsprint if I can find any these days.

We will see how the experiment goes.