86 day old autoflower. Keep or start over.

[Talidan]

Hello everyone. I got this 86 day old autoflower, a freebie feminized somango thats not flowering and is not looking good. The leaves near the top are yellowing from the tips inward. Some are getting brown spots too. She's about 13" tall and 20' from a pair of 84x6w led lamps in a 3'x2' grow box. I've tried everything I could to get it healthy again. Flushing, calmag+, pH adjusting the water to 6.5 everytime. I even transplanted from a 2 gallon pot to a 3 gallon. All is not lost though, I started another auto about three weeks after this one and she's doing much better and is getting ready to harvest.

If anyone can help figure why the top leaves are dying off and how to stop then I'd really appreciate the help.

 

[namvet25]

At 86 days I think it is just dying of old age. If it hasn't shown sex by now it never will. One thing you could try is 12/12 and see if that works.

 

[GCase]

Yes, looks like a photo sensitive plant. Can see the pre-flowers from vegging so long.

Cheers

 

[Talidan]

Thanks for that. The leaves aren't getting better. It's been a week since that photo. Can't do 12/12 since I got my other plant going 18/6 in my only space. Outside isn't an option with too many street lights and nosy neighbors. I've decided to compost it and move on.