Can a sweet cherry tree pollinate with a sour cherry tree?

Answer 1

Yes, however, you probably meant cultivar instead of species in this case. In the case of a cultivar, the answer is a qualified no. Most sweet cherries do not pollinate their own varieties. Most sour cherries do. Recent developements have come up with some self-fertile sweet cherry cultivars. Reputible nurseries will tell you which ones you need for which and usually have charts on hand to help.

Answer 2

yes, a sweet cherry tree can be pollinated with a sour cherry tree, although the resulting seed inside the cherry if planted will produce a tree that bears either semi sweet ,or semi sour cherries. so dont plant these seeds unless you want these kind of cherries taking up space on your land. dont worry though, the sweet cherry tree will still produce sweet cherries even though it was pollinated with sour cherry pollin