Juice the limes and lemon and set aside.
Boil 2 cups of water and pour over the lavender in a fine mesh strainer.
Add 1-3 drops of neon purple food coloring, if desired. Then, set aside.
Mix together sugar, vanilla, and cold water. Bring to a boil and stir occasionally until all the sugar is dissolved.
As soon as all the sugar is dissolved remove from fire.
Combine the sugar syrup with the lime/lemon juice in a 2 quart pitcher.
Pour the lavender water into the pitcher and stir.
Add 1-2 cups of ice to the pitcher.
Serve immediately. Add a few lavender buds to the top of each drink for garnish.