Is it common for your autos to go 100 days?
This is my first grow, so can't say what is normal. I bought these from Crop King and asked for recommendations for an easy greenhouse grow. The website says "8 weeks" but possibly that is under intensive 20/4 lighting which I did not have/use. I started seeds March 1 in Maine, where the daylight was 8 hours a day and I added a 25w bulb for an additional 4 hours. It started to flower approximately 4 weeks from seed and you can see the rest. She kept growing as well during flower. I've learned a lot at the thread Auto Growers Unite - A Community Thread .
You will find may 90+ days auto grows there, so I am not fussed with this plant's timeline. Autos work well for me because, by law, I am only allowed to have 6 flowering plants at a time (12 mature). So I can get these finished and jarred while the others are flowering.