If you've never tried these fruits, my guess is that it's because you either haven't heard of them, have never seen them, or both. That's a shame because they are absolutely amazing. Tastes like a mix between a strawberry and a blackberry with just the right sweet/sour ratio. Con: they're only in season June and July. You may be able to find them in big cities in the U.S. under the name Yumberry.