Pot protection

So last year I just grew a bunch of stuff all together all mixed up. The theory behind this is that the different plants with different root structures support and compliment each other. Whilst I am going to carry on with that this year there are a few expensive plants I want to protect a bit more from the clover. So I am growing a few things in pots with the bottoms cut off.  Here you can see the Yacon. You can also spot a bunch of other stuff growing around it