The small round green fruits of Denniston's Superb look like typical green gages, and have the rich gage-like flavor. However, illustrating how ill-defined the boundary between European plum and gage is, it is now generally considered to be a true European plum, on the basis of its upright growth habit and generally reliable productivity.
These niceties need not both the gardener - if you want a green gage without the fussy demands of some other green gages, this is the one to choose.
Rated by the Victorian writer Hogg as "a first-rate dessert plum".
Although the round green fruit resembles a green gage, Denniston's Superb grows more like a plum tree - upright, quite vigorously, and with good disease resistance. The long whippy branches soon adopt a weeping habit when loaded with fruit.