My problem sativa

One of my plants is from bag seed that looks like a sativa. The leaves started showing signs of nutrient burn a month ago. However, a botanist at a local commercial nursery diagnosed nitrogen deficiency and prescribed an iron/nitrogen supplement.

Bag seed
-12 weeks old
-Method: Soil
-Vessels: fabric pots
-PH is 6.2 or so. Don’t know TDS
Fertilized with FF Grow Big 6-4-4 and Kerex super iron chelate
-PPM/TDS or EC of nutrients: don’t know
-Method used to measure PH and TDS: PH test vial.
-Outdoor
-Temps; 100/60
-Humidity; Day, Night 30%

I flushed the pot twice in the past two days but the brown spots and leaf curling are getting worse. And the light color of the leaves tells me they’re not getting enough nitrogen I think.

Help! How do I get this girl stable again?



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Is it all over or just what you see on these few leaves ? Also is the kerex in powder form or liquid? Just my experience with kerex super iron, I couldn’t get it right when using ff, like they didnt get along together, and ended up having to heavy flush a purple haze I grew last yr outdoors let’s see if @Bobbydigital or @MidwestGuy just for starters is around

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I’d want to understand PPM before commenting.

All the light green stuff looks to be on all the tops. Which is normal for fast growth. The chlorophyll will fill in after a few days. As for the spots, unsure. You’re outside so expect to get some damaged leaves throughout the plant. What soil are you using?

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I’m using a Happy Frog potting mix. The brown tips and clawing are scattered throughout the plant, mainly in older leaves.

My other three plants seem to be doing fine but I’ve lost my way with this one.

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Sounds like N toxicity…. The spots are probably just old age leaves like @Bobbydigital said.

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I have flushed it twice as of two days ago. It should be showing improvement with less browning shouldn’t it?

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Damaged leaves dont get back pretty. New growth should (unless ur flowering)

A flush (that fixes the issue) will stop the spread. But ur medium is going to be empty so if you dont refeed, you’ll see new deficiencies shortly after

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