Unlike photoperiod cannabis seeds, autoflower seeds automatically flower after a certain number of days. This is a remarkable advancement in cannabis seed breeding, as it reduces cannabis growers’ exposure to photoperiod conditions. They allow for more efficient growth and a more efficient overall harvest cycle, making it easier to ensure that they grow to their maximum potential. Though autoflower seeds are usually taller and stouter than photoperiod cannabis varieties, they can still grow and flower just as fast.
The faster flowering cycle of autoflower strains comes with a few drawbacks though. While an extremely fast growing and flowering cycle is a great benefit, it can come with its own set of growing challenges. While they are usually not affected by day length, autoflowering seeds do require a certain amount of sunlight, typically 4 hours a day for a minimum of 8 weeks. With this requirement, autoflowering seeds are typically planted in spring and harvested in fall. The shorter growing cycle means that you are limited to growing and harvesting only for a few short months. When growing autoflowering seeds, the short length of the growing cycle restricts you to just spring and fall cultivation. Though most cannabis plants require a certain amount of light for flowering, autoflowering strains flower and set buds even with just a fraction of the light that is required by photoperiod seeds. Though they take significantly less light to mature, they still take time to grow and flower.