​ Herbs have four basic needs: Light, water, proper temperature and fertilizers. Light: Find the sunniest location or grow under lights. Bright light from windows with southern-western exposure is ideal. Water: Proper watering is the single most important requirement. A thorough watering is essential, not merely sprinkling. In general soil should be kept barely moist. Avoid overwatering. Humidity: Set pots on trays or saucers with a layer of pebbles. Keep water in