When buying plants in pots, some of them have small net bags around the roots. Is it better to totally remove the bag, split it, or leave it intact when potting the plant on into bigger pots? I very rarely have any success growing plants when they have these bags around the roots and I can’t tell if they have them until after I have bought the plants. I recently bought two Penstemon plants from a local supermarket which looked lovely and healthy. When I got them home and checked, the roots were very small and constricted so I pot them on and feed them but now both are dead.