peppers help please

How big a pot should pepper plants be in. I have them in 5 inch pots at the mo but im wondering if they will benefit from a bigger pot like a free asda flower tub.

thanks

Seems they like a female voice to talk to them as well.

must be where im going wrong then 

cheers for the info SG6, the asda flower tubs will be just the job then.

I'm growing sweet peppers in growbags, three plants to a bag - not done this before, but they all seem to be growing nicely and looking healthy.

Chilli peppers - I have a Thai Dragon, which I managed to overwinter, in an 8" pot and it's thriving, loads of flowers and tiny fruits  I've also got Apache and Jalapeno which are in 6" pots and doing OK though they are not as far on as the Thai dragon.  I read somehere that chillis do better if they're slightly constrained, so not to put them in really big pots, but I can't remember where I read that, so don't bank on it being correct!

Hope that helps
Sal