Much of gardening is trial and error, some would say.  Others learned gardening secrets handed down from generation to generation as tried-and-true wisdom. 

These methods probably work just fine, but one group of gardeners relies on scientific research to guide their efforts.  That’s the premise behind “The Tucson Garden Handbook,” the guide put out by the Pima County Master Gardeners. 

This is like the CliffsNotes of the (master gardener) manual.  Tucsonans, this is for you.