Last year I planted about 16 plants in a veg trug which had a net cover for when they were fruiting. I had others that wouldn't fit in so I put some in a half barrel and some in pots on their own.
The ones in the trug did really well. The rest were just bird food. I don't think I got any from the ones that were not in the trug. This year I'm moving the ones in pots to a raised bed so I can cover them with a net.