How many years should you wait in order to sell an iris rhizome? I buy some on EBAY, and when they come you can see that they probably were split in the first year that they grew, they are so small! I have very bad luck trying to get them to grow, they seem stunted. When I get Them from Superstition, MidAmerica, or Schreiners, the rhizomes are huge! With many baby rhizomes attached already. Is there a certain amount of time a grower should wait before they sell a rhizome? I don't like paying out good money for tiny rhizomes. Please help!