First Grow; Yellowing/Browning

[Heliopolis]

New grower here... I'm getting some yellowing and browning on the leaves. It started a few days ago on two larger lower leaves and seems to have moved up the plant a bit. I'm using a mix of FFOF and Light Warrior at the moment. Haven't applied any nutrients yet. Could it be overwatering/underwatering or perhaps something to do with the water I'm using? Anything I should be looking at in particular? If there is any other information I can provide, just let me know. Here are the pics:

 

[vukman]

Judging by the last image...too much water....don't know what else is going on but drooping leaves like that are a sure sign of over watering

Good Luck

 

[Heliopolis]

Hmmm... I thought I was being fairly careful about not over watering, but I will make sure to pay extra attention to that. Hopefully I haven't hurt it too much. Thanks for the tip!

 

[Sat X RB]

I agree with above ... and from yr text you seem to have concerns in that area.

if you think yr watering regime is fine check yr drainage. water should pretty well flow straight thru.

plants of the size you show don't use much of anything. be patient.

cheers!

 

[legalizeDK]

over watering.. only water when the pot feels lite when you pick it up. most if not all soil newbs (including my self when started growing) overwater their plants

 

[s00thsayer]

time to fertilize

 

[lewis11c]

For me over watering these plants are very dangerous. In fact over watering any plant is dangerous.

 

[TGT]

Less moisture in the soil and if you have not started giving veg nutes, now is the time to start. Start at half strength to three quarters, then go up each watering until reaching a little less than max, and she how she does.

TGT

 

[Heliopolis]

Thanks for all the replies! I've started nutrients (the GO line) at half strength, and I will up them as the plant adjusts. I will definitely be more careful about the watering, so hopefully she'll spring back a bit. I will let you know how it goes!

 

[Heliopolis]

OK. Time for an update! I decreased watering, and I transplanted her to a larger pot with more FFOF and perlite. She seems to be doing a lot better. Growth has sped up significantly, and she looks much greener. When the soil started to get a bit overly dry, I noticed some brown spots on the newer leaves. I thought it could be a calcium issue, but then I thought maybe I just let the soil get too dry causing an issue? They haven't worsened since I gave her a watering, and the newest growth isn't showing any of the brown spots. Here's a pic:

 

[s00thsayer]

Looking better. Try to keep it that shade of green in veg and adjust the fertilizer as needed. You had some brown spots starting in your original pics so the brown spots you are seeing now could be left over from not fertilizing soon enough. I think you should keep a close eye on it and see if you can tell if the spots are progressing. If they don't get any worse then you are fine, if they do get worse then you need to address it. Maybe post a pic at the same angle in a few days so we can see if it is getting worse or has halted.

 

[Heliopolis]

Thank you so much for your reply!

The necrosis seems to be mostly limited to the outer areas and tips of the leaves. The area immediately around the necrosis is usually a thin ring of bright green and yellow which gives way to a larger area with a very dark shade of green that appears raised, wilty, and shiny moving back toward the central vein. The very tips of the leaves also have a tendency to become bright green or even yellow. All of this seems fairly consistent with what I've read about Calcium deficiency.

The problem seems to halt or stabilize after watering, and it appears to worsen slightly once the soil becomes near dry. The temperature does drop down to the mid-upper 60s during the dark period. I don't think that's cold enough to cause issues. The pH seems to be pretty good, as far as I can tell. Mostly 6.4 to 6.8 whenever I've tested it.

As you say, perhaps this is a residual issue from underfeeding. I have been very stingy with the fertilizer, likely too stingy, in an attempt not to overfeed. I think when it's time for the next watering, I'll give a bit of fertilizer with some Calcium to see how she reacts?

I'll be sure to post a pic in a few days to show its progression.

 

[nukklehead]

nice recovery.. p.s ffof and light warrior dont need much ferts early on.. it takes most plants a ways into flowering with no supplement.. its easier to correct unerwatering then overwatering as you found out.
Good job/lesson bro.. I did the same things as you ..lol

anxious to see your results...

 

[vukman]

nice..........very nice... so good to see that you managed to get it turned around...

excellent work

Good Luck

 

[negative37dBA]

FFOF is gtg right out of the bag. Do not add more perlite as you only weaken the mix.
I have found my seedlings in FFOF can take nutes right away. I have 6 that are 17 days old today and have already been fed twice with Advanced A&B grow.
It depends on the strain but FFOF is not really that HOT. Thats why I say do not add the perlite.

Link to my current Afgooey grow diary
https://www.icmag.com/ic/showthread.php?t=250183

Link to my MKU grow diary.
https://www.icmag.com/ic/showthread.php?t=235661

 

[Heliopolis]

Thanks guys!

I definitely think the amount of LW I used diluted the mix too much to sustain that amount of growth with no additional input. Not to mention the overwatering that was going on, lol. I feel that I should have taken action earlier by either beginning to feed it or transplanting to the FFOF.

negative37dBA, I have a feeling I could have started with just pure FFOF and no LW. As you say, it doesn't seem that hot. I only added a meager portion of perlite. I like the idea of a very well draining mix.

In any case, she is doing fairly well. Still have some small spots of necrosis, but it doesn't seem to be worsening. I'm probably going to kick over into flower in a week or so. Maybe I should start a grow thread, lol.

 

[Heliopolis]

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