Place the jamaica in a large stain-proof container and pour the boiling water over it. Allow to steep for 25 minutes.
While the tea is steeping, place the blueberries, 3 cups cold water, and the lime juice in a blender. Blend on high speed until it’s as smooth as possible. Pour it through a fine-mesh strainer into a 2-quart serving pitcher. (Do this gradually as the strainer may clog with blueberry seeds.)
Once the tea is steeped, pour it through a clean strainer into the serving pitcher. Stir, taste, and add sweetener as needed.
Chill. Stir before serving over ice.
You can buy Jamaica or hibiscus pods for a good price in Latin grocery stores.Nutritional information does not include sweetener.