AUTO FLOWERING CANNABIS SEEDS Autoflowering cannabis seeds flower in a shorter period of time and require less care than regular or feminised seeds. Autoflowering seeds have become a valid alternative for the most demanding growers. They are all feminized! The biggest advantage of autoflowering seeds is the speed with which they develop - in two and a half months your plants can be harvested from seed. Also, most autoflowering varieties are smaller in size requiring less maintenance and are ideal for discreet crops in smaller areas. Autoflowering seeds are also easier to grow, both indoors and outdoors. In indoor gardens, it is not necessary to change the photoperiod as the plants themselves change from the growth cycle to the flowering cycle. Regardless of the hours of light they receive, they will develop buds.