Haha, no they are not contained! They are planted in the middle of a jungle.
My MIL's garden has been left wild for 15 years so it is 100% weeds with a few trees on the border. I spent 2 whole days digging out an area enough for 16 sweetcorn and 20 artichokes. The ground was full of broken windows, pipes, steel bars, bricks etc. I'm not too worried about a few artichokes spreading as I will have to eventually dig up the whole garden anyway.
Haha, no they are not contained! They are planted in the middle of a jungle.
My MIL's garden has been left wild for 15 years so it is 100% weeds with a few trees on the border. I spent 2 whole days digging out an area enough for 16 sweetcorn and 20 artichokes. The ground was full of broken windows, pipes, steel bars, bricks etc. I'm not too worried about a few artichokes spreading as I will have to eventually dig up the whole garden anyway.