I grew white widow for several seasons, indoors and outdoors. One of the most important things I noticed was that she did NOT like to be over fed. 1/2 or so of recomended ferts if feeding in flowering. A little boost of N just after switching to 12/12 helped also. I didnt add any nutes at all for the first 6 weeks, the 1/2 strength of grow ferts up until I switched to 12/12.

Just my 2 cents.