North American Fruit Explorers mailing list at ibiblio

[Scott Smith <scott@cs.jhu.edu>]

Since nobody has answered the original question here, I will take a stab.  
They will probably cross-pollinate since they are both diploids, and most of 
the diploid plums will pollinate each other.  Concretely, crosses of beach 
plums and americana plums are not uncommon, and p. nigra is closely related 
to p. americana.

Scott

On Oct 12, 2011, at 1:36 AM, Leslie Moyer wrote:

> Regarding Prunus nigrum (Bounty Plum) & Prunus maritima (Beach Plum):
> 
> Does anyone know if these two will pollinate one another?  (It seems 
> neither are reliably self-fruitful from what I've been able to find.)  
> 
> Leslie Moyer
> unschooler@lrec.org
> www.ShadyGroveNaturalFarm.com
> 
> 
> 
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