Pollination of Domestic Plum Trees by Blackthorn?

Question

I have a nunber of domestic plum trees in my garden, Avalon, Cambridge Gage, Herman, Victoria, Avalon and Coe’s Golden Drop. I know which of these should pollinate which, but I also have a hedge made mostly of Blackthorn trees which flower at the same time as the domestic plum trees. My question is will the Blackthorn pollinate the domestic plum trees.

Answer 1

Yes, this is possible for them to cross pollinate. You would not notice anything unless you planted the seeds from the fruit. They would, then, express traits from both parents.