I now have two tuberous cactus in 4 inch diameter pots which are 4 inches high. I want to got to a tall square plant pot and I need to know what size I need that is one size bigger than the round plant pots I am using now. I understand there is a difference in size between the round and square pots, is this so?
This is for Daisyl go into the following website and you will see tuberous cactus (which I have and they are copiapoa's) www.kadagarden.com/potting.html
