Posted: 21/01/2014 at 12:26
djjjuk, toms need at least 6 hours a day of direct sunlight for optimum growth*. They will cope with less but their progress will suffer accordingly. Ditto temperatures. Low 20sC and above are fine. The lower you go, the more they will suffer.
*Until the toms have grown and are ready to ripen. At that point, direct sunlight isn't necessary. Ripening is down to temperature, not sunlight.