A few years back, I did something that is generally not recommended... I ate some mystery fruit, which turned out to be not-only-edible-but-delicious Asian dogwood (Cornus kousa) fruits. The fruits have a flavor I would vaguely describe a 'tropical', but there's not a lot to them- they are small, have a leathery peel, and are full of hard seeds. While each fruit delivers only a bare taste of delicious pulp, they grow in profusion, and the trees are ubiquitous ornamental plants:
This year, I think I will get creative- while the fruits are delicious eaten straight off the tree, I think they would better serve as the basis of a fruity rum infusion... this could be a dangerous experiment!