Beach Plum

Beach Plum (Prunus maritima) was formally described and given its species name in 1785 by American botanist Humphrey Marshall. It grows wild along Northeastern US coastal sand dunes, primarily from northern Massachusetts to southern New Jersey, and has real, documented commercial history: in 1841 alone, roughly 15,000 bushels were harvested across Cape Cod's Barnstable, Dukes, and Nantucket counties, and beach plum jam and jelly-making remained a genuine, locally significant commercial activity on Cape Cod well into the 20th century, reported as such by the local county agricultural agent as late as 1948. Several real attempts to breed improved fruiting cultivars were made in the 1800s and into the 20th century — one breeder, working in Santa Rosa, California, crossed improved beach plum selections with a hybrid Japanese plum to create a variety he called "Giant Maritima," though the resulting fruit was documented as too soft to be commercially practical. Ongoing university research at Cornell, Rutgers, and the University of Massachusetts continues real efforts to develop the beach plum as a viable Northeastern specialty crop, valued for its usefulness in dune stabilization and erosion control as much as for its fruit.