Pam Penick, who grew up in the southeastern part of our country, wasn’t expecting the very dry garden she would get when she and her husband moved to Austin, Texas. The years she has spent learning how to have a beautiful dry garden have resulted in a desire to share all she has learned. The Water-Saving Garden: How to Grow a Gorgeous Garden with a Lot Less Water (Ten Speed Press $19.99) begins by showing us some beautiful…