i am a big fan of air pruning pots myself, for growing bonsai. But judging by the videos i see on youtube, from across the world, there seems to be a massive ignorance about it worldwide. Everywhere the traditional plastic pot with smooth sides and very few drainage holes at the bottom seems to be the standard. Why is this ? Why arent air pruning pots common in shops, nurseries and homes ? I am really puzzled. Thanks, for your perspective on this.
My guest is cost of producing regular pots is cheaper. Air pruning pots seems to be 3-5x higher
Some great videos on air pruning roots automatically - http://instantbonsaiforeveryone.blogspot.in/2015/10/air-pruning-roots-automatically.html