Just realizing another potential benefit of this species over Lulo while browsing Ken Ferns DB
Solanum sessiliflorum is a small prickly perennial plant with a woody base from which annual to perennial stems growing about 1 - 2 metres tall are produced. The stems of cultivated forms are usually unarmed, though they sometimes bear prickles.
Like its highland relative the lulo (Solanum quitoense), the cocona is a regionally important domesticated fruit that may have great unrealized potential as a tropical fruit crop. It has long been cultivated in the Amazon area by the Indian population for its fruits, this use has gradually spread and the plant is now grown pantropically
this suggests Lulo has difficulty being grown at or near sea level?
when looking at his entry for Lulo there is apparently contradictory information-
Plants can be grown from quite low elevations in the tropics up to an elevation of 2,500 metres or more. They do not do well in hot, lowland tropical areas