Heirloom tomatoes aren’t self-pollinating, which is an issue when we grow them in our greenhouse through the cool months. We start our seeds in January in our dining room under lights then pot them up a few months later. They get moved into the greenhouse in April where they stay until after our last frost date in early May. During these later months, they are growing like crazy (taller than me) and start getting blossoms. Without insects, there is no pollination so we take that task on ourselves. A paintbrush goes from flower to flower and, by the time we move our plants to the back deck, we’ve got tomatoes!