Plum Scion Wood Descriptions

Early Laxton  The Early Laxton plum tree is a tasty European heirloom plum with refreshing flavor. Bright pinkish orange fruit dotted with rose and violet. The Early Laxton plums are juicy, sweet, freestone, and high in vitamin C. A heavy bearer, the Early Laxton plum must be thinned to avoid weighted branches. Partially self-fertile, but yield will increase in the presence of another European plum. As the name suggests our earliest ripening European plum tree. 
Prune d’Ente  Famous worldwide for reliability and heavy setting, Italian Prune plum is a large purple freestone plum with yellow-green flesh. Great for drying and canning due to their sweet and firm flesh, these plums are also fresh eating favorites right off the tree. Hardy and widely adapted; resistant to bacterial spot. Fruit ripens in late summer. Can take a few years to mature to bearing age, but very long-lived in many conditions.
Cambridge Gage  An original English Gage! Unlike most of the Gage family that ended up in England by way of Italy and then France, Cambridge Gage was selected as a seedling grown on English soil. Enjoy this uniquely-flavored, satisfying, rich Gage plum. Sweet, dense flesh is green and firm, and the skin greenish yellow with slight red blush. Also, it is extra-juicy; a hallmark of the Gage family. Partially self-fertile, the compact tree blooms with Rosy Gage and bears a heavy crop that ripens in late summer. Particularly cold hardy member of the family.
Methley  Methley Plum trees are known for their ease of growth, abundance of sweet fruit, and the ornamental beauty of the tree itself. Originating in South Africa, Methley Plum was introduced to the United States in 1922. It is a variety of Japanese Plum, prunus salicina ‘Methley.’ The plums are known for their mild, sweet taste, and red to purple colored skin. The flesh is red and juicy. These plums are clingstone, meaning the pit clings to the flesh of the fruit, and the tree is a heavy bearer, producing a high yield of fruit. The Methley Plum makes a stunning ornamental tree with its showy, white, fragrant blossoms in the early spring. The tree is beautiful in the summer as the red to purple plums develop against the green foliage. In the winter, the graceful shape of the tree is revealed.
Seneca  This extraordinarily large plum is sweet, luscious, and freestone! Featuring beautiful purple/red skin and rich amber flesh, individual fruits can weigh up to 3 ounces each! Enjoy the fruit fresh, preserved as chutney or an amazing fruit topping, or canned solo. Seneca is a regular bearer on an upright, vigorous tree. It needs a pollinizer and ripens in early September here in the PNW. An introduction from the N.Y. Experiment Station, it has proven one of the best European plums in the WSU Mount Vernon tests year after year.
Shiro The Shiro plum is a large, round, yellow plum with an mild, sweet flavor and sunshine yellow, translucent flesh. The Luther Burbank variety, introduced in 1899, is very prolific, the fruit ripens early, and it’s ridiculously juicy. You might want to get out a bib for this one!  The fast-producing tree reliably cranks out loads of clingstone fruit every mid-summer, and builds a rather short, wide, layered form. Requires 400-500 chill hours to set fruit and doubles its fruit production each year for the first 5 years! 
Valor  A large dark purple plum with yellow flesh, similar to Marjorie’s Seedling, but with a sweeter flavor. Valor is generally considered self-fertile but some authorities believe it is self-sterile.
Disclaimer: Most of the descriptions of plum characteristics shown above were taken from other descriptions given on websites on the internet, some nearly verbatim; accordingly, this information is for use during Spring Field Day at the WWFRF and is not to be used elsewhere.