Harvest time variability.

[olbobcat]

Cruising around the web, it seems like there is a lot of variabilities if length of growing time for a given strain. I see where people have plants that have gone 15 weeks. I have just finished growing Fastbuds Green Crack. It was well finished at 67 days at 20% amber. I have seen people say 12 or 13 weeks? I am on 24/7. What makes the variability is it the pheno? I have Barney's Purple punch auto and Glue gelato I started inside and moved outside. They are on day 43 and have buds growing at a rapid pace. Again I see that some people have gone 15 to 16 weeks. I have Purple punch seen it listed at 50 to 60 and 75 outside. I don't believe the 50 to 60 but 75 seems reasonable. Just curious what gives?

 

[automan2]

After 15 yrs of watching my favorite weed growing, I have kinda decided that there's so many variables involved, harvest timing changes according to layered parameters including temps, humidity, lights, nutes, medium + plus more I'm sure...then add in personal preference...
I do think some breeders advertised timing is a bit of merchandising....targeting anxious new growers who want their smoke now....
Although I take breeders times into account, the layered growing parameters do change harvest times.
Most of my autos have finished between 70-80 days according to my preference of maturity, harvesting one for getting my old ass off the couch, another for enjoying the couch.