What's new
  • Happy Birthday ICMag! Been 20 years since Gypsy Nirvana created the forum! We are celebrating with a 4/20 Giveaway and by launching a new Patreon tier called "420club". You can read more here.
  • Important notice: ICMag's T.O.U. has been updated. Please review it here. For your convenience, it is also available in the main forum menu, under 'Quick Links"!

Yellowing splotches, brown spots

bass in space

New member
I posted this in the Grasscity forums, but they look pretty dead there, and this place looks like it might be a lot more helpful. I'm a new grower, and this is my first plant...

BASIC INFO
: I am growing a purple urkel clone in 1/3 mixture of peat moss, 1/3 perlite, and 1/3 Fox Farms Ocean Grow soil in a 30 gallon grow tub using the SCROG method. The lights I am using are 23w CFLS, 6500k, and there are three of them. She is sitting in a five gallon tub, with a soil PH of 6.9-7.

AGE: I had this plant since mid-July; she's still vegging and needs to cover up the screen. She's about 40% there.

WATER/NUTES
: I use filtered drinking water from the sink. Not directly from the faucet/tap water, but the little side faucet. I add a tablespoon of molasses per gallon and water her every three days. Every other watering, I am applying Fox Farms Grow Big with nutrients of 6-4-4 every other watering; I just recently started implementing about 1/4 tsp per feeding [that was the last two; I only started using nutes recently, because her soil is fairly new and still has nutrients in it], and the next time I feed her [which will be in a day or two], the increment will be increased to 1/2 a tsp.

TEMPS/HUMIDITY/ETC
: About 74-76 degrees, with a humidity of 55. No bugs.

ETC: I have come home after being away for two days and noticed her yellowing and with brown spots. At first, I thought the PH was too high and nutrient lockout might be occurring, but she was doing fine in a PH of 7 before I left. The soil was moist, too, so she's definitely not being underwatered.

However, four days ago, I had taken her outside into the sun for two days [and then I left for two days, only to return and see her condition], and in the first day, I took her out during the later afternoon and evening hours; about 4PM-6PM maybe? 7PM? The next day, I had her out in the sun from around 1 to 6, and I noticed her leaves folding up like a taco from heat stress.

The temperatures outside were about 74-76 degrees, and windy, too. I'm thinking because she has a black container, maybe there was an issue regarding overheating and nutrient consumption, too? I noticed after taking her outside, she had a couple of wilted leaves.

I thought this might have been a heat issue from being too close to the CFLs, but then why are leaves in the middle layer also being affected?

Any help would be greatly appreciated! Thanks for your time. :smoker:

EDIT: Here are pictures. Oops!
 

Attachments

  • Julia1.jpg
    Julia1.jpg
    76.8 KB · Views: 6
  • Julia2.jpg
    Julia2.jpg
    59.5 KB · Views: 4
  • Julia4.jpg
    Julia4.jpg
    91.3 KB · Views: 6
  • Julia3.jpg
    Julia3.jpg
    62.5 KB · Views: 5
Last edited:

grapeman

Active member
Veteran
I doubt that there would heat stress at 74 to 76 degrees. It could be a bit hot in the root zone with black pots, but even then probably not. I grow my tomatoes in the desert and it routinely hits 95 in the spring and they are in black 5 gal pots. Strong winds can and will cause a plant to shut down. I do see what appears a slight mg deficiency starting to appear.

But other then that, I don't see much problem.
 

bass in space

New member
Thank you for your response, grapeman. It was between breezy and a little windy, so I don't think it was the wind. My plant seems resilient in that respect. I've been suspecting some sort of deficiency, but I wanted to have another opinion on the matter.

I suppose I'll be going to get some epsom salt, then. :joint:
 

Cruzin

Member
My advice is always to just do your due diligence. Its not necessarily a deficiency. In fact, i find more times then not, it isnt..just me. It could be toxicity, lockout from PH problems or salt buildup...Just check your stats and deduce. Your plants are still looking pretty good my friend. Best wishes!
 
Your plants look GREAT and it is nothing to worry about
I've had that type of thing happen to me: plants that have completely lost their natural pigmentation but only on certain parts of the plant
I'm curious about what others have to say
I know my plants look perfectly healthy too
 

bass in space

New member
@Cruzin: If it's any of those, I would just have to flush the soil and take it slow and easy, right?

@straintester: Really? They'd get brown spots as well? That's mainly what worries me; I don't want my girl to die! I love her very much, haha. What were your first thoughts and feelings when you saw your plants lose/change their color for the first time?

Thank you both for the help, and the compliments, too. I'm really glad that people with growing experience find her to be looking healthy; it's somehow relieving.

I'm still open to other thoughts and opinions, as well. Any insight is always appreciated and taken into account. :smoker:
 
@Cruzin: If it's any of those, I would just have to flush the soil and take it slow and easy, right?

@straintester: Really? They'd get brown spots as well? That's mainly what worries me; I don't want my girl to die! I love her very much, haha. What were your first thoughts and feelings when you saw your plants lose/change their color for the first time?

Thank you both for the help, and the compliments, too. I'm really glad that people with growing experience find her to be looking healthy; it's somehow relieving.

I'm still open to other thoughts and opinions, as well. Any insight is always appreciated and taken into account. :smoker:

I figured she was just going through her change in life...lol
No I decided that she was healthy enough that I wasn't going to worry about it.
Many of these tyypes of things can be corrected on there own and i've seen many a person get so wound up with the faults of a plant that they then start adjusting so many things that they often end up with more problems than they started.
The brown spots could be an indication that your pH is a bit off,
BUT I wouldn't go adjusting too many things since your plants look lovely.
Seriously.
They are nice.:artist:
 

Cruzin

Member
@Cruzin: If it's any of those, I would just have to flush the soil and take it slow and easy, right?

@straintester: Really? They'd get brown spots as well? That's mainly what worries me; I don't want my girl to die! I love her very much, haha. What were your first thoughts and feelings when you saw your plants lose/change their color for the first time?

Thank you both for the help, and the compliments, too. I'm really glad that people with growing experience find her to be looking healthy; it's somehow relieving.

I'm still open to other thoughts and opinions, as well. Any insight is always appreciated and taken into account. :smoker:



Assuming these are potted plants I would take some PH'd water (no nutes) and test the runoff with a PH/PPM pen. You probably just need to drop your PH a bit. 6.9-7.0 in soil will start to lock out nutrients. Test both and calculate your problem, don't guess. If you just blindly flush, you could always make your problem worse.
 
Top