The following is a guest post from Julie Fischer, a gardening specialist who also works as a full-time gardener. She loves being outdoors, spending time with her cats, and is working on cultivating her own garden in California. The growing zone you’re located in makes up the basis of knowledge for a healthy garden.Understanding your growing zone for a better harvest is the best tool in your arsenal ofgardening knowledge. Many seed packets will have the best zones for the plant listed on theback.  A hardiness zone map has been a standard for determining what kind of plants can growaccording to annual temperatures. In the United States, it is produced…