Posted: 07/06/2014 at 19:35
I grew a 'Sir Alf Ramsey' in a trough last year with other plants. The trough was possibly 30cm deep, it reached a height of about 4ft and needed support but produced a couple of huge flower heads.
Agree with Bilje, they do need alot of water. I fed mine on home made seaweed feed. When dug up at the end of the summer the roots had taken over most of the trough and the tuber, as one would expect, was very large.
Slugs shouldn't be a problem once the plant is well established. Copper is a well known slug/snail deterent, putting gravel as a mulch around potted plants acts as a further deterent and will help retain moisture in the compost.
With the correct care and attention, most things can be grown in pots... I'm sure someone will be long now with a list of stuff which can't