All sweet cherry varieties, except Stella and some Stella crosses, are self-incompatible and must be cross-pollinated for satisfactory yields. Royal Ann (Napoleon), Bing, and Lambert are cross-incompatible as are some other combinations of varieties.
This publication will help you decide if a home orchard is right for you. It also gives guidelines for growers, how to plan your home for an orchard, planting and early care, care of bearing trees as well as harvesting and storage.