Herbal Tea A refreshingly tart, ruby-red infusion, packed full of vitamin C. Hibiscus Grown and harvested by smallholder tea growers, the bright red calyx of the Hibiscus flower is hand picked and dried naturally in the sun. The ruby-red infusion is refreshingly tart, bursting with blackcurrant and packed full of Vitamin C. We love the zing, but stir in a dash of honey for added sweetness.