Veg

Once youre rooted, your vegg is up to you, it depends on how tall u want ur plants. Just remember that once u 12/12, ur plants will grow appx 3x the size u start it at. Hope this helps

 

Usually about 4 to 6 weeks. Depends on the type of soil, nutes, and light that you are using.

 

if its auto flower, i have no clue.
if its standard seed, will be like don blaze said.
grow until plant is about 1/2 the size you want it to be when finished flowering if its an indica and 1/3 the height if its a sativa me thinks.