Rainier Cherry pollination
I am completely new to gardening but am making efforts to learn and need some help.
This year planted tomatoes, peppers, lettuce and would like very much to add cherry trees to the back yard.
The cherry that looks most appealing is Rainier Cherry which looks like needs pollinator (whatever that means?)
Could that be pollinated with Balaton tart cherry or Montmorency?
Generally is there some guidance on how to pick a pollinator?
Also if anyones knows whether there is a chance for Rainier cherry to make it in Colorado climate and general guidelines on extra care needed for that, would be much much appreciated.