Pineapple guava, Feijoa.
A useful small fruit tree suitable for many gardens.
Feijoa sellowiana syn. Acca sellowiana is in the Myrtaceae family.
Common name: Pineapple guava.
Cold hardy and drought tolerant, evergreen fruit tree or shrub, 2 to 3m or 8 feet high, or higher, but can be pruned smaller or even hedged.