Add some white rum to this limeade for a mojito-inspired cocktail.
In a medium saucepan bring 225ml of water, 170ml agave syrup and rosemary to a boil over medium-high heat. Remove the pan from the heat and cool for tne minutes. Strain the mixture into a pitcher. Add the lime juice and remaining 450ml water. Stir and sweeten, to taste, with agave syrup. Serve in glasses filled with ice.