When it comes to watering herbs in pots outside, the frequency will depend on a few factors, such as the size and type of pot, the plant variety, the weather and temperature, and the time of year. In general, most herbs will need to be watered every one to two weeks. However, during hot summer months, or if the pot is in full sun, you may need to water more frequently. If you're unsure how often to water your herbs, it's best to err on the side of caution and water them more often rather than less. Over-watering is not as much of a concern as under-watering, as most herbs are quite tolerant of wet conditions. When in doubt, check the soil before watering to see if it is dry to the touch. If it is, it's time to give your herbs a drink.