Gardening: Blackcurrants well suited to cool prairie nights

During World War II, when oranges were effectively unavailable in England, blackcurrants were eaten for their vitamin C. Prior to that, they had been consumed to combat scurvy. And their use as a medicinal plant goes at least as far back as the Middle Ages. They’ve been a part of the prairie fruit garden since European settlement and Indigenous peoples had used wild currants for centuries previous to that.
Blackcurrants (Ribes nigrum), native to Europe and northern Asia, are thornless and