Autoflowering cannabis varieties automatically switch from vegetative growth to the flowering stage with age, as opposed to the ratio of light to dark hours required with photoperiod dependent / short-day strains. Many autoflowers will be ready to harvest in less than 10 weeks from seed. Dwarf varieties can have comparatively short stature while still giving decent yield. Conversely "super autos" can take over 100 days to mature and can reach over 6 feet tall.