how long does it take for a plant to grow
Important Milestones in the Marijuana Plant's Life. Depending on how you set up your grow, it can take anywhere from 2 months to 6 months or more to grow a marijuana plant from a seedling to the point where the plant is ready to harvest.Some methods, such as growing hydroponically indoors, give your flexibility to get a harvested plant in as little as 2-3 months.Growing outdoors generally takes longer than growing indoors and is more dependent on when you plant your seeds and how long your growing season is.ome methods, such as growing hydroponically indoors, give your flexibility to get a harvested plant in as little as 2-3 months. Growing outdoors generally takes longer than growing indoors and is more dependent on when you plant your seeds and how long your growing season is.