Pots should be placed on small trays or saucers of gravel. This will allow for good drainage of excess water, and simultaneously provide a humid atmosphere around the plant. If adequate light is available, conditions are set to keep the humidity high around the plant and water and nutrients are supplied in the correct amounts, herbs will thrive indoors. It is also important to grow the plants in the correct sized pots that have good drainage holes. Herbs can be grown on a well-light windowsill that receives plenty of sunshine during the winter months or under fluorescent lights.
Indoor herbs require care and attention, particularly during the winter months.
However, if adequate light, air, water and nutrients are supplied, herbs will thrive indoors. The pot or container must also have holes in the bottom to provide good drainage. Herbs need light for successful growth and should be placed in a sunny window if possible or they can be grown under fluorescent lights making sure that the lights are placed close to the plants. Special fluorescent lights are available which emit the wavelengths necessary for photosynthesis to occur. The plants should receive about 15 hours of light per day with the light source about 40 - 50 cm above the plants.