Posted on January 31, 2017February 4, 2017 by Weed DwarfDwarf Weed, one month old A one month old small cannabis plant, indoor under LED. Still doing fine! And the more leaves it gets, the more water it needs. I am watering every 2 days now. It is not very warm in the attic because it is winter time… But the weed does not seem to suffer.