Systems and methods for growing cannabis plants

A method of growing a plurality of cannabis plants, the method comprising:

• conveying the cannabis plants along a conveyor path in a downstream direction from a conveyor upstream end to a conveyor downstream end over the course of at least 50 days,
• the conveyor path including, between the conveyor upstream end and the conveyor downstream end, a clone stage having one or more sequentially arranged clone stage zones, and a flower stage having one or more sequentially arranged flower stage zones, the flower stage positioned immediately downstream of the clone stage,
• providing clone stage nutrition to the cannabis plants when in the clone stage, the clone stage nutrition having a ratio of (calcium and nitrate) to (phosphorous and potassium) of at least 3.3:1,
• providing flower stage nutrition to the cannabis plants when in the flower stage, the flower stage nutrition having a ratio of (calcium and nitrate) to (phosphorous and potassium) of at least 1:1, and
• removing the cannabis plants from the conveyor for harvesting after the cannabis plants reach the conveyor downstream end, wherein at the conveyor downstream end the cannabis plants have an average height of 30-40 cm, and an average density of at least 35 plants/m2.

A system for growing cannabis plants, the system comprising:

• a conveyor having a conveyor upstream end, a conveyor downstream end, and a downstream direction, the conveyor defining a conveyor path,
• the conveyor path including, between the conveyor upstream end and the conveyor downstream end, a clone stage and a flower stage, the flower stage positioned immediately downstream of the clone stage;
• and
• a lighting subsystem having one or more lighting modules that expose the clone stage of the conveyor path to a light intensity of between 75-125 μmol/(s-m2) during light periods of a clone stage day-night cycle having between 18-22 hours light and 6-2 hours darkness per 24 hour period, and that expose the flower stage of the conveyor path to a light intensity of between 180-450 μmol/(s-m2) during light periods of a flower stage day-night cycle having between 10-14 hours light and 14-10 hours darkness per 24 hour period.