about a week ago that it came in bloom, the plant begins to eat its oldest leaves, and fertilized with homus and there are many bud sites but the plant is very compact
Congrats! That weed looks a lot like some of the stuff I've got, but mine generally only turned purple after stress/photosynthesis issues.
I haven't (finished) growing any autos yet, but I also have strange issues with growing time on my current flowering (regular) plants, considering it's week 33 now...
I have a few hunches what influences it, but I'm not sure yet.