Pollination should not be a problem. Depending on your location, you may have a chilling problem. Have you noticed a lot of cherries grown n your neighborhood? Call you local county extension service for the hours of chilling where you live. Al

Thanks for the info. I do see cherry trees planted along business buildings near my neighborhood. No one picks the fruits because the trees are about 40 feet tall. During summer, the cherries drop all over the sidewalks and parking lots. A flock of crows always end up eating the fallen fruit. I'm keeping my fingers crossed. Hopefully, my location will have enough chilling hours for the cherry varieties I chose. Again, thank you for answering my question.