For indoor gardeners, the majority of autoflower marijuana seeds have a life cycle of around 10 to 12 weeks. The seedlings germinate, develop, and naturally begin to blossom within 4β7 weeks inside. Most indoor autoflower seed gardeners harvest their plants about ten to twelve weeks following germination.
The autoflower growth cycle can extend for several weeks outdoors because of the chilly temperatures, fewer daylight hours, and weather patterns. For instance, chilly evenings can impede the development of an autoflower. When cultivated outdoors, autoflower seeds can often take 10 to 15 weeks, depending on your local environment.