Jenny:

I think you will find Stanley to be self fertile. I once had one in Amarillo and don't remember any pollinator. It is listed as self fertile in my sources.

I thought it was a pretty good plum. Hope you have a good crop this year.

The Fruitnut

Yes: they were probably talking about the plum trees but not the apple trees. If you now have the right pairing of apple trees for cross-pollination then you may have it covered.

kansasfruiter, your plums are budding out 3-4 weeks too soon for your climate. Temperatures below about 26 kill the open blossoms then there is no fruit set.

Also, although my european plums put out flowers their first couple of years, it wasn't until about the 3rd year they set fruit. They may just need some maturity on them to get the hang of it.

Carla in Sac

Agree... Kansasfruiter, usually pollination is not so much of a problem on European plums, it will happen when time comes.

Konrad