To be considered an heirloom tomato, the plants must be open pollinated, which means by the wind or insects, and has existed for at least 50 years.  The Master Gardeners will provide information on how to grow heirloom tomatoes and have heirloom seeds for customers to take home and grow next year.  In addition to the fresh tomato tasting, there will be a variety of dishes using the heirloom tomatoes available for sampling, as well as recipe cards.