In a large glass or cocktail shaker, muddle together the simple syrup and fresh mint leaves. Add the bourbon and distilled water and mix together.
Fill a julep or rocks glass with crushed ice. Pour the bourbon mixture over the crushed ice. Stir, fill to the top with more crushed ice. Garnish with chunk of honeycomb and mint sprig.
To Make the Hibiscus Honey Simple Syrup
In a small pot, combine the water, honey and hibiscus flowers. Bring to a boil, then simmer for 10 minutes, stirring occasionally. Place a strainer over a bowl and pour the syrup into it to strain out the flowers. Shake the strainer a little bit to get all of the syrup out. Discard the flowers and allow the syrup to cool before using.