I have an Oro Blanco grapefruit that I bought last year. We repotted it into a large ceramic pot, and it seems very happy with lots of new growth. We moved it inside to prevent frost damage this winter and it is currently nearing full bloom with dozens of buds & blooms.

Obviously, the bees cannot get to this tree, so here it my question: Do I need to pollinate this tree myself, or is it a variety that does not require pollination to fruit?

I also have a mandarin tree that is setting buds now, so I'll need to ask the same question for it as well.

Any other advice on the care of these trees would be most appreciated.