Real time

What is the actual grow time from start to finish

Depends. Veg can last between 4 weeks to a tree. Flower generally lasts between 8-11 weeks.

Well that all depends on your whole set up and strain your growing. Some strains have a longer or shorter flowering . Would that be hydro or soil? What lights are you going to use? What Nutes are being used? LOts of things factor into time to finish..

White widow unless there is something better I will be using soil and going to look at lights now so what is the best still looking at nutes

Thats like asking how long will I live. There are guideline times per strain of weed.