How to Grow Marijuana: a Beginner’s Guide to Cannabis Cultivation – Growing Environments

How to grow marijuana indoors

Growing marijuana indoors usually means a warehouse setting, which requires artificial lighting and the use of air conditioning and dehumidification systems. The intention of an indoor setup is to mimic the elements of the outdoors that facilitate plant growth while maintaining full control over every environmental parameter. High upfront costs, including the building structure, equipment, water, electricity, and other utilities, is the major downside of growing marijuana indoors for beginners.

How to grow marijuana in a greenhouse

Growing cannabis in a greenhouse offers the free sunlight of an outdoor grows, but with far greater environmental control. Greenhouses allow growers to control natural light with a blackout shade or similar roof covering system. Greenhouses also offer the option to add electrical lighting to supplement sunlight on cloudy days and an added layer of protection from animals, pests, and extreme environmental changes.

One of the downsides to greenhouse cultivation is the upfront cost required to have such a structure. Greenhouses range from temporary structures made of plastic and PVC pipe to permanent structures that allow growers to control every environmental aspect and utilize advanced cultivation methods, including light deprivation.

A risk in greenhouse growing is that pests can spread inside the enclosed environment at a faster rate. Protection against environmental crossover is also limited depending on the type of greenhouse structure.

How to grow marijuana outdoors

Growing marijuana outdoors exposes a crop to the elements, offering natural light and significantly reducing costs for growers. With no artificial lights or fans required, electricity may only be required for irrigation.


While exposure to a natural environment is generally good for plants, exposure to harsh environmental conditions may present hindrances to an outdoor crop.

Rain, insects, invasive plants such as thistle, animals, and extreme weather conditions are all potential crop killers. 

Outdoor cultivation also limits cultivators’ control over environmental crossover from neighboring fields. In short, your fellow farmer’s pesticides could end up being your pesticides if they’re not expertly applied.

Outdoor cannabis cultivation relies on the available sunlight during the changing seasons, during which the plant is exposed to the full spectrum of light available in nature at that time of year. Outdoor cultivators experience a longer growth cycle and typically only harvest once a year.

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