Make sure that the lavender you use for this drink is organic. Then, soak it in alcohol. Add about 1/3 cup of lavender to a bottle of vodka. Leave it for two or three hours for a nice floral vodka base.
Pour about 44 milliliters of that into the bottom of a tall glass. Fill that glass with ice and then top it with our ginger beer. Add a squeeze of lime if you like.