Yan420answered grow question 1y ago Hey growmie, seeing pistils at 21 days in autos isnāt that unusual, they can start showing early under strong sun and tight genetics. But yeah, Iād say thereās more going on here.
From the pics, that soil looks heavy, zero perlite or visible aeration, which can stunt root growth early on. That can cause the plant to stay small and trigger flowering even faster, since autos are on a timer and stress can make 'em flip quicker.
So itās not just genetics, probably a mix of heat, compact soil, and early root stress. She still looks healthy enough, so just keep her well-aerated and donāt let the soil stay soggy. You might get a smaller yield, but sheāll finish.
Next run, try adding 30-40% perlite or coco for better airflow. Makes a huge difference for autos.