I have seen a similar idea- bags made out of engineered textiles. You can take weed block fabric and sew into a bag to do the same. I though about making some to put potatoes in this year. I think nurseries use them to grow trees in instead of plastic pots.

I would like to know how the fabric pots work too. England uses them according to web searches.

I've used weed block fabric to make bag-type pots with a drawstring for water plants. They keep the growing medium contained but still let the plant grow and expand!