I did this backwards and purchased trees without research. I found a beautiful satsuma and a ruby red grapefruit that I just decided to purchase.

Always wanted to purchase a satsuma, they do excellent in this area. Thought instead of bumming a few from my neighbor I would grow my own.

But I need to know now, did I mess up in only purchasing one tree. Do I need two to cross pollinate?

And . . . I have just heard this past few months how others in my area are having a great crop of grapefruit from their trees . . . . so . . . I purchased one also.

Again . . . should I had purchased two to cross pollinate?

Any other tips on these two trees would greatly be appreciated. I'm a bit embarrassed I didn't do my research first . . . but the unseasonably warm weather we've been having has me in spring fever early.