This year we have over 50 spicy pepper plants growing in Fabric Pots. We are also using cheap aluminum half pans to allow the plants to self water.
Last year was the first time we grew peppers in fabric pots and we found that because of air pruning they had a great root structure. This lead to none of the plants being root bound which would inhibit their growth and fruiting potential.
The plants are sitting on our concrete patio to stay a little warmer through the night and to help with better growth.