The present invention relates to a plum tree and more particularly to a new and distinct variety broadly characterized by a medium size, moderately vigorous, hardy, and productive tree. Being self-unfruitful, the present variety requires cross pollination from another plum or interspecific tree that blooms during the late season, such as ‘Plumsweet XVI’ interspecific tree (U.S. Plant Pat. No. 26,055). The present varietys moderate abundance of blossoms and pollen entices strong bee activity to facilitate pollination. The fruit matures under the ecological conditions described during early September, with first picking on Sep. 8, 2016. However, the fruit has been observed to hang firm on the tree for up to five weeks. The fruit is uniform, large in size, nearly full red in skin color, clingstone in type, pure orange yellow in flesh color, firm in texture, juicy, and very good in flavor.