Timing of Organic top feeding for autos

I plan on aiming at about 90 day lifespans for these. I’ve read that you should start feeding flower nutes at around week 7. I’m assuming that’s for bottled nutes though, when things are more readily available for the plant.

I’ve been only top dressing with worm castings on top of my roots organic so far here at week 5 starting preflowering. What do people think is the optimum time to start switching to flower top dressing?

Any suggestions?

When flowering starts, maybe two weeks into flower.

Just kind of in general, the longer your plants have been in the final pots, the sooner you'll need to feed them. If your pots are very "small" or your plants are very "large" you'll need to feed sooner.

Huge plants that have been in small pots for awhile will have consumed lots of what's in the soil by the time you get to flowering. Smaller plants just put into bigger pots will have enough food for awhile and won't need top dressing until a little later.

I would top dress now if i was you with something like this.

Thanks for your responses guys

just topdressed at 2 weeks flower and them sexy bitches blowin up

FRICKITYFRICKTYFRESH said:

just topdressed at 2 weeks flower and them sexy bitches blowin up

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When or what does is “weeks flower” look like?...they have been pre flowering for about two weeks (outside) is that the same as flowering? I want to get max growth before vegging. They’re already a solid height at about 2 feet so I went ahead and did it today at almost 6 weeks old