No ....but this question in part is strain dependent, many strains past the 60 days say 75 days will start to look crap, like they have very yellowing leaves, like to much or too less a food, the plant has passed its peak and needs to be put down, others say, with a lot of Sativa, can easily go 85-95 days plus, with out any visual indication of disruption.
In time you may wanna make your own strain, and if you KNOW the individual strains concerned its a breeze and highly addictive hobby,
bagseed would have confused you more