Practical question about that: how do you water in that case? Water, wait till it has drained and back on its side?
Well, nail and head. This is the reason why I have not done this yet. But the idea would be to water this one first, do y watering round. Maybe water a second time and flip it to its side again. Lets see. I will probably be lazy and not do this, complaining agin in 2 years that it is not coming along.