This thread might help since there are several places where one can buy an open pollinated versions.
http://www.tomatoville.com/showthrea...+striped+heart
And how I loved Barcelona,learned to pronounce it barthelona, and watched the flamenco dancing and the bullfighting and ate excellent food including the outstanding pastries.
And that's where I took the funicular to the top of MT Tibidabo.
Good memories all.
Pattyb, mentioned above in the link, had sent me lots of cherry sized fruits and Black Striped Heart was one of them.So I got to taste them and note in the link that there are other places that also sell seeds for the OP versions.
Carolyn