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Yellowing leaves - now made a diary
GrowingGrannieanswered grow question 2 years ago
Thank you SO much for making the diary! The answer is pretty simple and it's two-part - First and foremost, your PH is too high! You need to get that down to 6.0-6.8!! Second, you're giving your ladies too much nitrogen (the NPK of Bio-Grow is 4-3-6 and it's that 4 that's the problem!! Especially when combined with the Bio Bloom which has an NPK of 2-7-4) and it's causing a lock out of the calcium they need! Cut your grow nutes in half if not more. Adding the calmag should help (if the PH is corrected) but only give this once a week or you might end up with a calcium toxicity.
The damaged leaves will not recover, so don't expect it...
Good luck!
dave1038answered grow question 2 years ago
Thank you very much @GrowingGrannie
I watered them today already with a lot less nutrients (around 2ml of grow and 4ml of bloom) in total and i’ve been using my PH meter more and some PH down to get the pH a bit lower 😊
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Organomananswered grow question 2 years ago
Seaweed extract has very little nitrogen or other macro nutrients and is more of a soil tonic rather than a plant fertilizer.
Your bio bloom and bio grow should have more than enough nitrogen.
Try adding a P/K booster to your line up, your plant looks hungry for potassium in my opinion.
Potassium is one of the most required elements during flowering.
Organic P/K boosters are available.
Hope this helps, Organoman.
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dave1038answered grow question 2 years ago
I’m guessing i could try and add something such as liquid seaweed to my mix to see if that gives it a boost due to the nitrogen content inside it?
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Robertsanswered grow question 2 years ago
Looks like a nitrogen deficiency or you have a serious root problem like rot. Are two options I can see being the problem.
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