Whats the issue?

I have some plants that are 2 weeks old. I have been feeding them GH flora series at half strength. 20/4 light schedule, 68-77°F, 40-60%RH. Any idea why the lower leaves feel crunchy and dry, they have always been a darker green but now seem to be curling down slightly. Maybe nitrogen toxicity? First time grower here.
 

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CountryFriedPotHead

Well-Known Member
First off, you’ve got some good growth for two weeks from seed. You know the genetics?
I do not think your plant is showing signs of N deficiency, although I’m not 100% sure.
How often are you watering?
 
First off, you’ve got some good growth for two weeks from seed. You know the genetics?
I do not think your plant is showing signs of N deficiency, although I’m not 100% sure.
How often are you watering?
These are actually bag seeds believe it or not. I'll send you a picture of some of the bigger ones. I'm amazed at how well they're taking off. I water when dry, they went into 3 gallon pots about a week ago and I've had to water 3 times total. Once when they first went in, once 3 days ago, and then again this morning. I was actually thinking I may be underwatering. I read a lot about first time growers overwatering so I've been trying to wait until the medium is dry between my first and second knuckles
 

CountryFriedPotHead

Well-Known Member
Nice, Ive grown only bag seeds so far. No hate. Was the whole tent germinated at the same time?
I doubt your under watering, due to what you explained. Its good that you done your research I commend you. Every 3 to 5 days is how often I’m watering.
Most people have their own principle when it comes to watering, all though every one does is similarly, most don’t do it exactly the same. Your wet/dry results can vary from Anyone elses based on fan(s) placement and speed, also on lights and a few other factors.
When you transplanted them did you put them in the same soil mixture they had in their smaller homes?
 
Nice, Ive grown only bag seeds so far. No hate. Was the whole tent germinated at the same time?
I doubt your under watering, due to what you explained. Its good that you done your research I commend you. Every 3 to 5 days is how often I’m watering.
Most people have their own principle when it comes to watering, all though every one does is similarly, most don’t do it exactly the same. Your wet/dry results can vary from Anyone elses based on fan(s) placement and speed, also on lights and a few other factors.
When you transplanted them did you put them in the same soil mixture they had in their smaller homes?
They were started in jiffy peet pots and went to a 70/30 mix of coco and perlite. And the soil was very dry. I tried the pot weighing method but the plants seem to be over potted and I have to water them before the pot is as lightweight as it was before the first watering. I also water about a quart to each plant around the base under the leaves
 

CountryFriedPotHead

Well-Known Member
They were started in jiffy peet pots and went to a 70/30 mix of coco and perlite. And the soil was very dry. I tried the pot weighing method but the plants seem to be over potted and I have to water them before the pot is as lightweight as it was before the first watering. I also water about a quart to each plant around the base under the leaves
I cant give you a guaranteed analysis, but If you feel the tap root was dry at one point it would have SOME SORT of affect on the plants even if it is barely anything. I see some kind of pale splotches on the top leaves and a little bit of misconfiguration on the bottom spades. I would say watch it for further definitive signs of a deficiency. I know there is someone here that can give you a little better insight than me. Just not exactly sure who, im kinda new to RIU myself.
 

2com

Well-Known Member
I have some plants that are 2 weeks old. I have been feeding them GH flora series at half strength. 20/4 light schedule, 68-77°F, 40-60%RH. Any idea why the lower leaves feel crunchy and dry, they have always been a darker green but now seem to be curling down slightly. Maybe nitrogen toxicity? First time grower here.
I think I see what you're describing as "curling down slightly". Do you mean the "single blade" looking leaves at the bottom that are almost doing a downward, lengthwise "curl", or the opposite of "canoeing/taco-ing"? (These terms, lol.)

It's a little hard to diagnose deficiencies under purple lighting. I see what looks like some little necrotic spots beginning on the two largest leaves. Could be something that it's already "gone through", if it doesn't get any worse. Honestly, I can't really see anything real bad from that picture.
 
I think I see what you're describing as "curling down slightly". Do you mean the "single blade" looking leaves at the bottom that are almost doing a downward, lengthwise "curl", or the opposite of "canoeing/taco-ing"? (These terms, lol.)

It's a little hard to diagnose deficiencies under purple lighting. I see what looks like some little necrotic spots beginning on the two largest leaves. Could be something that it's already "gone through", if it doesn't get any worse. Honestly, I can't really see anything real bad from that picture.
Yes I was referring to the leaves curling down. I posted in a later comment a better picture under white light. Same thing on the bottom larger leaves
 

Lpena007

Well-Known Member
I have some plants that are 2 weeks old. I have been feeding them GH flora series at half strength. 20/4 light schedule, 68-77°F, 40-60%RH. Any idea why the lower leaves feel crunchy and dry, they have always been a darker green but now seem to be curling down slightly. Maybe nitrogen toxicity? First time grower here.
Blurple
 

2com

Well-Known Member
Is this better?
I don't really see any need for concern. *shrug* I guess. Maybe I'm missing something. It looks fine, top/new growth looks fine.
N toxicity usually causes leaf tip to "claw" downward, it's pretty distinct, if that's what you were thinking. It's not the same as "drooping" downward (the whole leaf, or leaves). And it's not like that almost "ruffled" edges/margins either, from what I've experienced and seen.

Are you seeing those (two?) ruffled lower leaf blades and thinking there's something wrong? I don't think there's anything wrong there. Have a look up of some images for comparison of; leaf clawing, leaf drooping, leaf curling, (downward, if your case), Nitrogen toxicity, etc.

Hope that helps some. Try and keep an eye on your ph.
Check this site out if you want, I've seen another user here recommend it: https://www.cocoforcannabis.com
 
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