To make the rose tea maple simple syrup.
Place the rose petals and boiling water in a heat resistant measuring cup. Let it soak for 15 mins. Drain well to extract all the liquid. Stir in maple syrup and mix well.
To serve,
Pour grapefruit juice evenly into 3 glasses, add 1/4 cup of rose tea maple simple syrup to each glass. Top with ice cubes and a float of rose petals, grapefruit slices and rosemary. Enjoy!