Combine water, sugar, and herbs in a small sauce pan and bring to a boil. Stir continually until sugar dissolves and then simmer for1 minute.
Remove from heat and let syrup steep with herbs, about half an hour. Note the amounts of herbs will depend on the strength of the herbs themselves. You may, for example, need 1/4 cup of lavender but 1 cup of basil to get the strength of flavor you desire.
Cool and pour syrup into container through a mesh strainer to remove herbs. Store in the fridge for up to one month.