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Dark spots on leafs
BudsandBloomsstarted grow question 7 months ago
Can anyone tell me what the dark spots on my leaves mean?
Calcium deficiency or over-fertilization?
I actually wanted to flush for last two weeks starting today.
Should I continue fertilizing in case of a deficit?
Thank you!
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Robertsanswered grow question 7 months ago
I am gonna say it's a potassium deficiency based on discoloration and spots. The spots is 2nd stage if potassium deficiency. Plus being in flowering. The npk ratio in flowering is 1-2-3. So lots of potash is required but low nitrogen. It's that or you have a ph issue causing lock out.
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Organomananswered grow question 7 months ago
Yes, calcium deficiency.
If you plan to harvest in 2 weeks, anything you do now will not have any impact or "fix" anything before harvest day.
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Scrubbyjimbobanswered grow question 7 months ago
If you're about to harvest then adjusting nutes isn't going to matter, you'll be chopping before it really had a chance to take effect anyway. A 2 week flush is a bit much though, plain water your last week should suffice.
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