Underwood Plum Tree
Underwood plum is a delicious semi-freestone red plum originating in Minnesota. It ripens quite early and keeps better than other plums.
The Underwood plum is a medium to large plum with an oblong or conic form. The skin is a red and moderately thick with a slightly tart flavour. The aromatic flesh is golden yellow; tender, sweet and juicy. It is almost completely freestone but with still a little cling. These plums are ready for harvest for us in mid-August and keep better than other plums but still have relatively limited fresh storage life.
Underwood plum tree is large and vigorous with a spreading growth pattern. It provides large annual yields given good pollination and has beautiful yellow fall colour; hardy to zone 3.
Underwood plum originated from the University of Minnesota breeding program where it was originally tested as Minn 91 and was introduced in 1921, making it one of the oldest commercially available cultivars from the program. It is a cross between Shiro (P. angustifolia x P.cerasifera x P. salicina x P. simonii) and Wyant (P. Americana).
|Height at maturity||4-5 metres (13-16 feet)|
|Spacing||4 metres (12-15 feet)|
|Sun / shade||Full sun|
|Average fruit weight||40 g|
|Fruit color||Red skin, yellow flesh|
|Years to bear fruit||6|
|Pollination||Self-sterile. Must be pollinated by Prunus nigra|
|Average diameter of fruit||4 cm|
|Also known as|