Help with my first grow - granddaddy purple

Looks exactly like mine :joy: She got super lengthy on me

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Hi all,

Wondering if I could get some advice, as just noticed the following brown spots on the leaves and it’s concerning me especially as we’re getting closer!

I’ve read that it could be one of two things: Rust Fungus or Nutrient Burn. When I checked and rubbed some of the leaves, nothing rubbed off onto my fingers (apparently a way to check if it is fungal). I checked this a few times, so I really hope this isn’t the case…. Is there a chance this could be nutrient burn or perhaps also heat stress related as we have some leaf curl?

Any thoughts or experience in this dept really appreciated :grin:



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It’s not affecting every leaf either, mainly the ones highest in the unit.

Just tagging in @Todd.grobo as I am sure you’ve seen thousands of grows. Would appreciate your insight please?

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Here’s an article that covers leaf curling.

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Usually a sign if heat stress. You may have a tempermental strain.

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Mine has shown this sign a lot I tend to not worry about it being there is always so much new growth almost daily, constantly trimming 2-5 leaves off my girl per day even though I shouldn’t in flower correct @Todd.grobo or is it ok to trim a few off everyday?

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They say to not trim much during flower, but I hit mine good after the ph problem last night. I took off a bunch of lower stuff and some of the brown leaves up top. Might push back flower a week, not sure yet.

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Ok @TheDogMan thank you for the heads up and info sir!

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I cut daily. Not much but I will snip a few fan leaves each day. Always clearing a path for light. I don’t think it hurts or slows the plant.
I don’t like to do the big huge chop day. That seems like a shocker to me. Just my opinion. As long as you are careful, you will still harvest flowers :bouquet:

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The way it is looking I will have a huge center cola I am going to guess she will be 3.5-5 grams hopefully, shoot that cola alone will last me damn near a month smoking wise :joy:

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Flower : day 19/41

Average temp: 23-24c
Average humidity: 53-55% (can’t seem to lower it much more)

She’s starting to smell delicious :yum:

Update on the leaves - I implemented a fresh water change (only been using distilled - costs a fortune here but worth it) and suspect the grobo recalibrated the nutes and there’s very few affected leaves now. I just keep taking one or two out each day. I also did a decent defoliation yesterday as well. Also pushed the tallest cola away directly from the lamp, hopefully that will buy some time but I also have LST clips if needed.

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Looks good, but maybe a good bit more can still be taken off. You can see not much light is getting down lower and you can’t even really see what is down there.

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OK thanks @TheDogMan appreciate the tips! How aggressive would you go, as I have seen some vids of the fan leaves stripped back to essentially just the colas themselves! This strain seems to handle defoliation quite well - she doesn’t stop growing no matter what I seem to do.

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I only trim the big ones, but enough so you can get light down below. Some go the entire “cut everything off but the top foot” :grinning: but I don’t go that far.

Mostly up too you, I just like to cut enough so light gets down lower.

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Mine likes it 54%

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@Willcol1 How much does Distilled run you? I can’t imagine it is more than a $1 per gallon? Also she is looking amazing

Looks great :sunglasses::+1:t2:

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Can’t buy it in stores in the Uk, I am paying £30 per 25 L (5.5 gallons)… so call it $7 per gallon

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