Outdoor Swamp Cooler?

Last night when I was watering our potted herb garden I decided it was time to water all plants in the yard, this included sprinkling the entire bush.  After doing so I was amazed at the difference in the temperature around the plants.  I had been over to the side of the house and felt the warm heat of the day rising from the ground.  Walking between the house and the wet bushes and plants there was a pleasant coolness emanating from them.  It was like having a swamp cooler outside.  My Wonder Filled Moments were enjoying the coolness in our back yard sanctuary.
In Gratitude,
Linda G