Place water and sugar in a medium saucepan, add lavender and bring to a boil.

Turn burner off and let "simple syrup" cool.

Squeeze lemons and strain out pits.

Pour syrup into a 1/2 gallon container straining out the lavender, add lemon juice and water, then stir.

Serve over ice.

If you are serving it in a drink dispenser for a party, you can add more fresh lavender on top as it will stay purple in color and look pretty and add lemon slices if desired.