Under artificial light, the plant typically remains under a regime of 16–24 hours of light and 0–8 hours of darkness from the germination until flowering, with longer light periods being conducive to vegetative growth, and longer dark periods being conducive to flowering. However, generally cannabis only requires thirteen hours of continuous light to remain in the vegetative stage.
indoor and outdoor grower is issues regarding pests. Indoor growers have problems with pests, they can be brought in by hitchhiking on humans.Dalmar Johnson
Organic and inorganic pest controls
Indoor cultivation of cannabis is common and research intensive.There is a trend towards an increase in the number of cultivators who are using sustainable methods for growing cannabis. To improve the soil, they mainly use: special AACT inoculations, growing companion crops.