NPK ratings

[BurtonEvan]

Okay I need some help with nutes and the NPK ratings.
What's the best npk rating for:
veg-
and
flowering-

how often do I use nutes?

I have nutes that read 15-15-15.... Will this work for the veg stage?

 

[LorDeMO]

That will work for veg, you will want something low in N, high in p and medium in k for flowering tho..

 

[BurtonEvan]

Anyone know the exact npk ratios?

 

[LorDeMO]

I think most people just use several nutrients with their plants - I haven't been able to find any all-in-one stuff that wasn't waaay overpriced.

 

[T.H.Cammo]

Anyone know the exact npk ratios?

There isn't one ratio that is "The right one!". Actually 15-15-15 is "balanced" and should work ok through veg and flower cycles. It will just leave more unused nutrients that should be flushed out before harvast.

A simple "Rule of Thumb" for beginners:
During veg, "N" should be twice as high as "P" & "K" (2-1-1).
During flower, "P" should be twice as high as "N" or "K" (1-2-1-).

There are more "exact " ratios that may be a little more "dialed-in", but these are close enough (and for beginner's, a lot easier to remember). The point is, the ratios don't really need to be exact, as long as they are "Fairly Close!"