A total of five accessions have been tested at the Pullman Plant Materials Center. The most desirable accession, P- 13252, was tested at the outlying stations and in field planting trials. More accessions will have to be tested before an entirely satisfactory long-lived American plum is found for this area. P-7349 Russian mulberry is a tall shrub or small tree. The leaves are extremely variable and many different shapes may be found on one plant.
Branches are gray and are many-branched, forming a dense, compact crown.
This mulberry is quite shade tolerant so the crown tends to have good density to the base of the plant. The fruit is an aggregate, generally dark purple to black. The fruit is small and although not generally used by humans, it is readily eaten by birds. Diseases or insects were not common. Russian mulberry has its greatest potential in the irrigated areas of the lower Columbia Basin and Yakima Valley.