:Hi: i kept a few years ago all different types of garter together , i had eastern, plains, checkered,ribbons,etc and i never had any problems with them together but during feeding time you have to watch them. but besides that everything should be ok. try to keep them all the same sex you dont want to produce by accident hybrids.
I imagine aslong as same size and feeding is supervised shouldnt be a problem or am I wrong? : Thanks. : Bianca