Most of our  herbs are growin in pots so they can be transferred in the house during freezing months.  We let them go dormant for a bit in the winter, giving us time to nourish their soil.  This way, when a grow light goes on them in early spring, they bounce back quickly and full! Herbs that are in the ground, stay in the ground.  They are composted with fresh layers and bounce back in spring when the weather tells us so!