If you haven't guessed by now, we love growing heirlooms here at Gardenerd HQ. This year we were excited to try growing fish peppers. Both the fruit and leaves offer visual interest in the garden with variegated, cream-striped green pods, and white-mottled leaves that look like a beautiful mistake. Fish peppers also have a history dating back to the 1800s, with African-American culinary roots tracing back to the 1940s. Hot white sauces made from these young fruits kick up the…