Tangy Hibiscus-Lime Iced Tea

In a small saucepan, bring the sugar, warm water and lime zest to a boil. Remove from the heat and let steep for 30 minutes. Strain into a measuring cup.

In a large saucepan, bring the cold water and hibiscus flowers to a boil. Remove from the heat; let steep for 20 minutes. Refrigerate until chilled.

Strain the tea into a pitcher. Stir in 1/2 cup of the lime syrup, or more to taste. Serve the tea in tall glasses over ice.