These are Architectural Gardens, NOT traditional flower gardens. They were created by landscape architects putting forth their visions and philosophies.
The Gardens are an entertaining stopping place for many on the way to the California Wine Country in Sonoma. There is a very nice restaurant/cafe on the grounds as well as a number of art and garden shops.
For more info on the gardens see: http://www.cornerstonegardens.com
Very interesting shots here Laura, I love the Bird Houses and the beaded tree.
The flowers and Butterflies really add a great touch to this colorful display.