Pear Pollination
Most pears require pollination by another pear to produce fruit. Kieffer is the one pear which is truly self-pollinating. Almost all other combinations of two pears will do the trick. The only exception is that Bartlett and Seckel cannot pollinate each other, but they can pollinate almost all other pears. So if you plant both of those, you will still need another pear to pollinate each of them.
To have successful pollination, the pear blossoms must be open at about the same time. While the pollen is compatible between Asian and European pears, the bloom time is often not overlapping. Generally, Asian pears are early bloomers and European pears are mid-season bloomers. To be on the safe side, we recommend that Asian pears be used to pollinate each other. And we recommend that European pears be used to pollinate each other.