Purple guava, Psidium myrtoides makes small purple fruits with large seeds and low sugar content. I almost removed the tree as I didn't particulary liked fresh fruits. They taste very healthy and have a high amount of flavonoids, but not enjoyable to eat.
The fruits are usually formed in small clusters.
Before digging the tree out, I decided to make a tea out of the fruits, and this saved the tree. The tea flavor reminded me the black currant fruit flavor. They should share similar compounds responsible for this flavor. Purple guava is definitely worth growing for making drinks.