It is every grower’s dream to harvest flowers year-round, continuously, and getting cuttings that allow them to clone strains. Here is how to harvest cannabis all year round with a perpetual harvest method using two separate spaces. In order to begin a perpetual harvest cycle, one space should be allocated to the first growth stages of the plant and, the other space, to flowering and ripening. Both should be maintained with appropriate air-circulation, temperature and light schedule for each cycle, and the vegging room should be fitted with a table. Cuttings and mother plants are key when it comes to perpetual harvest, since they allow harvest times to shorten.
Perpetual Harvest: Cannabis Flower 365
Fluorescent light should be set at 18 hours a day in the vegetative growth room. Three 18 W lamps will be enough until cuttings put down roots and seeds start germinating. The first shoots and rooted cuttings to reach 10 cm in two or three weeks must be moved onto the upper side of the table (seen from above). Lighting should preferably consist of two sodium lamps of different power consumption: a 250 W lamp for the vegetative growth room and a 150 W for maintaining mother plants. During this stage, plants will grow and, when they reach about 70 to 90 centimeters in a month and a half, we take them to the flowering room.
A few weeks before this, new cuttings should be taken and placed on the lower side of the table, while mother plants keep growing. When these plants are carried to the flowering space, new cuttings are ready to be moved onto the upper side of the growing table.
Inside the flowering room, plants grow under a 12/12 photoperiod until they are ripe for harvest. Three kinds of light sources can be used: high-pressure sodium lights, metal-halide lamps, and LED lights. This whole process takes around eight to twelve weeks. When the flowering room is vacated, new mother plants are brought in—that is, our grown-up cuttings. It is worth noting that, during the vegging stage, new cuttings are placed on the lower side of the growing table, and—in this way—the cycle is complete and flower supply is said to be continuous.
Of course, although the cannabis cycle ends with flowering and postharvest, an additional space should be available for drying and curing. This whole process should be overseen so that plants receive the necessary nutrients while growing and to spot eventual pest infestations in any stage.