The vegetative stage occurs from the period of a small seedling to when the marijuana plant matures to a flowering plant.
The vegetative period is the perfect time to optimize the nutrient and light schedule, maximizing the eventual yield.
Find more about the vegetative stage here:
More growing process definitions:
Germinating | Seedling | Transplanting |Flowering stage | Flushing | Harvesting | Drying | Curing | Yield