Tammy is a lifelong gardener. She started selling and installing greenhouses and polycarbonate locally in 1993. Next came her online store www.advancegreenhouses.com. Many questions about greenhouses, polycarbonate and greenhouse supplies have been answered since the inception of this business. You will find that many of these questions and answers have found their way into Tammy's books. Tammy blogs about gardening at growyourownfoodanywhere.com.