Prepare serving glass. Run a lemon wedge over the side of a wine glass to lightly wet. Spread the cane sugar and hibiscus leaves over a flat plate. Gently roll the wetted glass over the sugar mixture until lightly coated. Set aside.
Prepare the Seven Blossoms Simple Syrup. Bring a kettle of water to a boil. Once boiling, remove from heat to cool slightly. In a heat-proof bowl, add the agave syrup, and 1/2 cup water. Mix until completely dissolved, add the Seven Blossoms Tea, cover, and set aside to steep for 10 minutes.
Prepare the Seven Blossoms Spritz. In a mixing glass, add the raspberries and 1 ounce of the Seven Blossoms Simple Syrup. Using a muddler, smash the raspberries until they are crushed. Add the lemon juice and 1 cup of ice. Stir for 15 seconds, or until the corners of the ice cubes are rounded.
Add ice to the prepared glass, and strain the mixture into the glass. Top with soda water, garnish with a lemon twist, and enjoy.