Indoor cultivation allows the grower control over all the factors governing plant growth – light, water, nutrient, heat, humidity, airflow and so on. When these factors are effectively managed the usual result is a more potent crop achieved in a shorter space of time than would be possible with outdoor growing.
Similarly, indoor cultivation allows the grower to decide exactly when to induce flowering, giving more control over the speed and size of the crop.
Grow-lights allow plants to enjoy the benefits of direct, intense light for their entire ‘daytime’ life. This is not possible when growing with sunlight. More direct light generally results in denser, more resinous buds and a more compact plant.
The resin that coats the flowers of indoor plants need not be affected by environmental factors such as wind and rain – which can damage the glands
Indoors, there is a smaller range of pests that may prey on or damage plants. However, the sealed environment of a grow-room also removes the possibility of naturally occurring beneficial insects (which prey on pests) and, unchecked, may result in a far more serious infestation than is likely outdoors.
Indoor cultivation allows the grower to work simultaneously with plants at different stages of growth. This can be achieved by having two or more growing areas, typically one on a 12/12 photoperiod for flowering, the other on 18/6 for vegetative growth. This set-up allows a ‘rolling’ or perpetual harvest (where a number of plants are put into and harvested from the flowering area every week or fortnight)
Perhaps most importantly, having a two-cycle growing area allows the possibility of keeping ‘mother-plants’ and making clones. Cloning enables a grower to retain the individual genetics of one favourite plant for years, if desired. Keeping a female plant in a perpetual 18/6 photoperiod allows it to continue vegetating indefinitely. Any shoots cut from this mother plant can then be rooted and transferred to the flowering area. This means the grower is able to flower many exact copies of the mother while retaining the ‘master copy’ in the vegetative area.