What plays a bigger role in triggering the plant to switch to flower; Nutes or Lights

I report in my journal that I'm on week 6 of the flower cycle, but think I may be doing so incorrectly. I flipped to 12/12, but waited another 5 days to change to flower nutes. (too busy) Does this mean that I'm actually on week 5 instead of week 6? What causes the plant to switch over more; nutes or lighting? I could also use a no BS assessment of my girls.

https://www.rollitup.org/grow-journals/491410-4-site-aero-toteo-scrog-8.html#post7084505

lighting.....nutes dont change anything.

It takes a week or two to go from veg to flower, I count when pistils and bud start to form as the start week. As for what makes the plant change, it's the lighting.

Edit: If your using dates for a new grow and trying to figure harvest time based on breeders times, stop now. It's good to journal a first grow if your going to be taking clones and growing it out as this will give yu a rough timeline and future growing of said plant. If your popping seeds with every. We grow, again, forget timelines Nd go by what the plant says for ripeness.

Did I harm them by not changing the nutes at the same time as the light?

Purplestickeypunch said:

Did I harm them by not changing the nutes at the same time as the light?

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no theyll be fine.

As desr said, you'll be fine. I myself give them a week or 2 on veg nutes after flipping the light to make sure I won't have to much yellowing from to low nitrogen.

For normal photoperiodic plants yeah it is definitely light. However, too much nitrogen may delay flowering. And if there isn't enough P (available), or any other nutrient is limited, you can expect bloom\over all growth to be delayed.

Grumpy' said:

It takes a week or two to go from veg to flower, I count when pistils and bud start to form as the start week. As for what makes the plant change, it's the lighting.

Edit: If your using dates for a new grow and trying to figure harvest time based on breeders times, stop now. It's good to journal a first grow if your going to be taking clones and growing it out as this will give yu a rough timeline and future growing of said plant. If your popping seeds with every. We grow, again, forget timelines Nd go by what the plant says for ripeness.

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Is this what you mean? If so, it is 6 days after flipping the lights and the actual day I changed over to flower nutes.

healthy fan leaves determine flowering time along with a shorter lite cycle. i have used many types of nutes over the years and i have noticed that it doesnt matter what nutes you use. i have used high P stuff. low nitrogen stuff. every combo of npk imaginable. knowing that you start the flower cycle with healthy fan leaves serves me best. i wont even consider flowering until i have a nice set of fan leaves to soak up the lite. i usualy get hairs in about a week. there is no majic bottle that induces flowering better then a nice set of fan leaves. if there not healthy dont start flowering....

10-4 to that. My girls looked great when I did the flip. They still look healthy to me, just small.