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Can anyone tell me what this curling and yellowing is the bottem leaves feel a little crispy on the ends

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Can anyone tell me what this curling and yellowing is the bottem leaves feel a little crispy on the ends

Oliver2021 24 Replies 2,520 Views
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Oliver2021

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#1
Can anyone tell me what this curling and yellowing is the bottem leaves feel a little crispy o
Can anyone tell me what this curling and yellowing is the bottem leaves feel a little crispy o 2
 
#3
Need info like are you installing ferts, type of soil, lighting strength and closeness to plant. Temp and RH[ day and night ] are also important. Your watering habits also.
Guessing I would say heat stress/drying out?
 
#4
steamroller said:
Need info like are you installing ferts, type of soil, lighting strength and closeness to plant. Temp and RH[ day and night ] are also important. Your watering habits also.
Guessing I would say heat stress/drying out?
Click to expand...
18/6 hours under 100w led not too close to plant, last week I fed it some amgrow I'm thinking it's nutrient burn because it was doing alot better better before that but I think I was over watering too strain is Bubba Kush auto and it's in an indoor potting mix
 
#5
Oliver2021 said:
18/6 hours under 100w led not too close to plant, last week I fed it some amgrow I'm thinking it's nutrient burn because it was doing alot better better before that but I think I was over watering too strain is Bubba Kush auto and it's in an indoor potting mix
Click to expand...
Do you think it will die or can it be saved
 
#6
You burned your plant adding fertilizer to a potting mix that didn't need any. There's no need to feed a quality new potting mix for a "few to 6 weeks". Keeping the drainage run-off to a minimum can extend the nutrients in the container for a long time.

When I use a new potting mix that's amended, I only add pure water for the first 4 to 6 weeks. Here are some pure rainwater plants using FoxFarms HappyFrog soil. No fertilizer
IMG 2272
at all just water only.
IMG 2273
 
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#7
You could try flushing it if you agree it has been over fed.
The damaged growth will not recover so now you need to be watching the new growth,
You can remove the really damaged leaves.
 
#9
I agree with the other poster. If you added fertilizer too early then you nute burned your plant. And honestly from the look of your plants current health status. I would start over if you have more seeds. The time it will take to recover will take about as long as it would take to get a healthy plant to its current size.
 
#10
Cannagar said:
I agree with the other poster. If you added fertilizer too early then you nute burned your plant. And honestly from the look of your plants current health status. I would start over if you have more seeds. The time it will take to recover will take about as long as it would take to get a healthy plant to its current size.
Click to expand...
Thanks I'm not worried about yield I just don't want it to die being my first grow
 
#11
Trixie said:
You burned your plant adding fertilizer to a potting mix that didn't need any. There's no need to feed a quality new potting mix for a "few to 6 weeks". Keeping the drainage run-off to a minimum can extend the nutrients in the container for a long time.

When I use a new potting mix that's amended, I only add pure water for the first 4 to 6 weeks. Here are some pure rainwater plants using FoxFarms HappyFrog soil. No fertilizerView attachment 1314071 at all just water only.
View attachment 1314070
Click to expand...
Are these autoflower? They look good
 
#14
Cannagar said:
I hear you. But your still so early in your grow that starting over might not be a bad thing.
Click to expand...

This is one of the reasons I will not grow autos....they are finicky and if they have issues such as you are experiencing, it could all end up a waste of time and associated expenses. Most folks don't even recommend topping autos and you def don't want them stressed at all.

FWIW, starting over is good advice.
 
#15
Too much fertilizer too soon affecting ph, burning, and stunting your plant early. For seedling stages you do not need much in soil besides aeration and castings for microbiology.. try promix bx or similar soil for seedling. Treat them like newborn babies less is more until they grow up.
 
#17
Oliver2021 said:
18/6 hours under 100w led not too close to plant, last week I fed it some amgrow I'm thinking it's nutrient burn because it was doing alot better better before that but I think I was over watering too strain is Bubba Kush auto and it's in an indoor potting mix
Click to expand...
Being its an auto, id cut my losses now and start over, and i just chopped 4 plants and started over so i know is sucks but sometimes it is what needs to be done.
 
#18
Trixie said:
You burned your plant adding fertilizer to a potting mix that didn't need any. There's no need to feed a quality new potting mix for a "few to 6 weeks". Keeping the drainage run-off to a minimum can extend the nutrients in the container for a long time.

When I use a new potting mix that's amended, I only add pure water for the first 4 to 6 weeks. Here are some pure rainwater plants using FoxFarms HappyFrog soil. No fertilizerView attachment 1314071 at all just water only.
View attachment 1314070
Click to expand...
Good lesson: Less is mo'
 
#19
Since you mentioned that you are using an indoor potting mix. I just want to make sure that it isnt something like miracle gro. Because if so its not good for cannabis.
 
#20
I notice the mix has a lot of bark chips on top. Is the mix well aerated? Does it ball up in your hand and crumble when you let it go? That’s the consistency I like. With not enough aeration the bottom half of the medium stays too wet providing for anaerobic fungi eventually killing/choking out the roots, pythium. If you end up taking the plant down examine the roots.
 
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