Originally Posted by Richard

Chong, it depends on the cultivar. Plants grown from fruit collected in the wild (subtropical Brazil) do not need a pollinator. Coolidge, a selection of one of these does not need a pollinator either and is an excellent pollinator for those which are "shy". Nazemetz does not need a pollinator, but Lickver's Pride produces more fruit with another pollinator.

It is true that pineapple guava can be a water-frugal plant, but this often results in smaller fruit. The fruit size is mostly a function of water and nutrition -- and guess what(!) ... it is a potassium-loving plant. If you want larger fruit, then feed it like a pit fruit tree. The Lickver's pride is famous for having on average, larger fruit than the other cultivars.