Red Strawberry Guavas is a small tree in the myrtle family, native to Mexico, Central America, the Caribbean, and northern South America.In addition to fresh applications, Strawberry guavas can be cooked into jams, purees, and pastes for use in baked goods and fruit leather, or the jams can be spread on toast. They can also be simmered into a syrup and used to flavor iced tea, sparkling water, and cocktails.