The Grow Awards 2026 πŸ†

Flower N-P-K

displacedtexan
displacedtexanstarted grow question 6y ago
Is there a good "rule of thumb" N-P-K to start with for flowering? I have a 4-6-3, 3-9-4, and 2-2-2 to mix for various N-P-K's. I'd like to get close to an ideal mix when I top dress in a few weeks. I know fertilizer needs will vary by strain, but I'm interested in a baseline.
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Week 10
Feeding. Chemical composition
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Mr_Weeds_Autos
Mr_Weeds_Autosanswered grow question 6y ago
Hey Growmie, A general rule of thumb is to remain close to a 3-1-3 (N-P-K) ratio for the first few weeks. During flowering, it is best to reduce the proportion of nitrogen to phosphorus and potassium compared to the ratio used during the vegetative stage. It is essential to lower the portion of N at this point. Hopefully, I answered your question and remember ..."Happy Growing" and "Free your mind one puff at a time"
MaryJaneUSA
MaryJaneUSAanswered grow question 6y ago
General rule of thumb: vegetation: High N, Low P, High K. Flower: Low N, High P, High K
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