Lately the salad that keeps making its way to my table has a base of toasty farro topped with ripe heirloom tomatoes, juicy plums, and grilled corn plus handfuls of fresh herbs. The dish encapsulates everything I love about summer – sweetness, char, and that unmistakable flavor of the season’s tomatoes.   Of the vegetables I grow, tomatoes are the ones I cherish most and check on throughout the day. Whether you enjoy the ritual of growing and tending to tomatoes or love picking them from the market, this advice will help you make the most of tomato season in full swing.  The tips are designed for cooks and gardeners alike, intermingled in…