Marijuana growers go to extraordinary lengths to obtain perfect buds with high terpene content, the right taste and the right looks. There are several factors that influence the product. One is control of humidity. During the vegetative stage the plant needs high humidity but as it matures, humidity needs to be reduced. Applying some stress to the plant increase terpene production resulting in buds that taste great. Temperature is also a key influence in growth, maturation and budding process. Night and day temperatures must be managed at the comfort level of around 80 degrees. Plants also need ventilation and since most growers cultivate marijuana indoors, this is also a critical factor. Some growers resort to additional carbon dioxide coupled with high intensity levels of light to promote extra growth and get more yield. Soil is also a key to healthy foliage and budding. Growing methods such as hydroponics, aeroponics or potted plant or bed plant cultivation is another influence on the final yield and quality.