Curling Leaves - Please Help!

Discussion in 'First Time Marijuana Growers' started by Bixby-12, Jul 19, 2019.

  1. F19FBD1E-4E87-4AC2-9F6E-75E1C1888BB9.jpeg 41FCB6CC-2B29-4A04-ABED-6478C224ECA0.jpeg 486689B4-68A9-48DE-91C2-EC81FD07A847.jpeg 27B6CA90-03AC-4457-8340-F72A97B9406F.jpeg Please help! I am new to growing. I have two NYC Diesel, autoflowering plants in early flowering phase. They were doing great until a little over a week ago when a few lower leaves started yellowing. I was told it was likely a nitrogen deficiency, so I used a liquid all organic flowering fertilizer in very low concentration, only once. The plants perked up noticeably until a few days ago when the edges of all the leaves started curling. I was worried I was overwatering so I have let it totally dry out and now they look even worse. What should I do?

    Any ideas on what is wrong and how to fix it are greatly appreciated!
  2. My guess is that perhaps you added a bit too much nitrogen when fixing the deficiency and now it looks like nitrogen toxicity. Discontinue giving her whatever nitrogen supplement you were adding. A flush may even be necessary if things get worse. The affected leaves probably wont recover, but at least the toxicity will stop and new growth should start looking better. Just my 2 cents. Good luck.
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  3. Lower leaves will yellow as the flower process goes on. This is N toxicity, happeened to my first plant. Flush with PH 6.5 water and only water for next few waterings.
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