Jeff Lowenfels is the author several of award-winning books on plants and soil, and he is the longest running garden columnist in North America. Lowenfels is a national lecturer as well as a fellow, hall of fame member, and former president of the Garden Writers of America.Wayne Lewis is a lifelong Alaskan gardener. He has worked with Jeff Lowenfels on many projects over the past 25 years, including the now national Plant a Row for the Hungry program, which encourages gardeners to donate a portion of their harvest to charitable organizations in their community.