Plants in Vigoroot pots need more water to support their vigorous growth. Scientists report that growing plants in a pot made of a porous fabric like Vigoroot gives you stronger, healthier plants. 

Air Pruning

What happens in these pots is a process called 'air pruning'. It is a process that changes the way the roots form, giving healthier, more vigorous roots. They won't grow too long or result in a 'pot bound' plant. So what you get is a larger, healthier potted plant.