Beans originated in Central and South America and were first cultivated in Mexico over 2,000 years ago. All beans belong to the legume family, and therefore fix nitrogen in the soil from the atmosphere, an important ingredient for plant growth. Beans are a great source of protein and go well with corn in the diet. We have grown this bean out as it was gifted to us by the Heritage Food Crops Research Trust along with many other beans as part of their Heirloom Bean Project. This bean originated with the Hopi Tribe and has been grown in their fields in Arizona for a long time. This climbing bean produces a high yielding early to mature bean with mottled pods. The beans themselves are not black as the name suggests but are a white-beige bean with black streaks. Ideal as a dry bean, but can also be eaten green.
Sow in trays in glasshouse in September or direct in the garden when chance of frost has passed. From trays prick out when true leaves appear and transplant into fertile soil at 15-20cm spacing under a trellis for support. For autumn crop repeat sowing in January/February.