The ultimate factor is the goal, Rosenthal said. If you want a certain grade of cannabis, such as a gorgeous, stanky dried flower with a consistent quality, indoor could be better in spite of the upfront and maintenance costs.
Indoor allows you to completely control your environment, including temperature, light source, CO2 levels, and humidity, without having to worry about weather. Indoor typically produces flower with higher THC percentages.
Factors to consider: price, climate, and quality
Controlled lighting in the greenhouses prevents flowering, keeping the plants in the vegetative phase longer so that they gain mass, Zwicky said. But most importantly for Plena, greenhouse cultivation allows for consistency across the plants and ensures there is a crop ready to plant once a field has been turned over.
Growing weed outdoors
Climate is a factor for both commercial and hobby gardeners, explained Rosenthal. Plants need sun and warmth to thrive. Latitude makes a difference in daylight hours and length of grow season. Living situation also plays a part. If you’re in a city or worry about your neighbors, indoors would make more sense, Rosenthal said.
For an indoor grower, when a plant is about half the final size you want it to be, you should change it over to the "Flowering" stage. This is the stage when your plant starts growing buds.
1.) Vegetative – Seedling or clone leads to Vegetative Stage
Check out my cannabis grow light guide for more info about picking out suitable lights!
The first stage, "Vegetative" begins when marijuana plants first sprout, at the beginning of their life.