First grow Auto Fem Jack Herer

So first off, just found this site or I would have posted right from the beginning!. First time grow for me and I decided to go with an auto flower because it seemed like a good first step into growing. I picked the Auto Jack Herer to start as the strain has a some history to it also its a great smoke overall. My first 4 weeks have gone great. I had some trouble deciding which training method to use on it, in the end I went with LST and am very happy with that method. As I have gotten to about the mid point of my 4th week I have noticed it starting to go into flower, I still have it on veg nutrients and am not sure if I should wait for my usual day to switch it to bloom nutrients or do it now. I have had a ton of fun so far!. I have 2 more Jack Herer seeds that just poped up, and picked up 5 trainwreck seeds today as well (also from crop king seeds)! I should mention my lights are a BestVA 1000w (185w actual pull from wall) so I marked them at 150w above. While the light was okay for my first grow, I am looking to upgrade it as soon as possible.