American Plum (prunus americana) Wild plum home to thickets and hedgerows in the eastern U.S. Possibly has the best smelling flowers in the entire world. Fruit is small, tough skin, and very delicious flesh. Highly disease resistant. Excellent pollinator for other plums and a solid rootstock for other plums and peaches. It is hard to explain to people just how good a good American plum tastes, there's nothing like it. Hardy in zones 3-8 (American plums are featured in the pictures here)
Beach Plum (prunus maritima) Wild blue colored plum native to beaches along the northeast coast. Tasty small fruits. Can grow in pure sand. zone 3-7
Dawes Hill Plum (prunus spp.) Seedlings of an ancient plum tree found growing on an old homestead in upstate N.Y. Excellent fruit, disease resistant. Zone 4-7
Toka Plum (prunus americana x p. salicina) Self-pollinating, and an excellent pollinator for other plums. Toka is a red plum with great flavor and abundant crops. Zone 3-8
Toka Seedling Grown from the seeds of grafted Toka plums. These are vigorous trees that are worth experimenting with to see what fruit is like or to use as a rootstock for other stone fruits. The trees we have this year are very large, well branched, well rooted individuals.