In a medium-sized pot, stir the water, lavender, and sugar together until the sugar has dissolved, then place the pot on the stove and set to medium heat, stirring occasionally.
After 10-15 minutes, the syrup should be slowly simmering (do not let boil), then take off the heat and let cool to room temperature.
Using a mesh strainer, strain the syrup directly into the serving pitcher, discarding the lavender buds.
Juice all lemons and add your water [you can add more water/lemons to your taste] pour the lemon-water mixture into serving pitcher with lavender simple syrup and mix together. Refrigerate until chilled and ready to serve. Garnish with a lemon slice if you want to be fancy.
When serving lavender lemonade, add vodka [or your preferred liquor of choice] to top off your glass. This is the perfect beverage for a Sunday fun-day, bridal shower, birthday party, brunch etc.