Morning everyone
My problem is took out a male and after that just this one girl started to yellow and drown a little.
PH is 6.0 to 6.2
Heat 75F
Humidity 60%
All the others are fine nice and green!!
Any ideas
My problem is took out a male and after that just this one girl started to yellow and drown a little.
PH is 6.0 to 6.2
Heat 75F
Humidity 60%
1 Like
If sheâs in soil, the pH should be closer to 6.5, between 6.3 and 6.8. Could you post a picture of the whole plant? Also, more information about your setup would be helpful. Fill out a support ticket and lots will jump on and help you out:
Answer these simple questions the best you can.
If you do not know, or do not use something; Just say so; Or post
NA (non applicable)
- What strain, Seed bank, or bag seed
- Method: Soil w/salt, Organic soil, Hydroponics, Aquaponics, KNF
- Vessels: Pots, Grow beds, Buckets, Troths
- PH of Water, Solution, runoff (if Applicable)
- PPM/TDS or EC of nutrient solution if applicable
- Indoor or Outdoor
- Light system
- Temps; Day, Night
- Humidity; Day, Night
- Ventilation system; Yes, No, Size
- AC, Humidifier, De-humidifier,
- Co2; Yes, No
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Bag seed
Iâm in hydro water buckets
Temp is 74f day
68 to 70f at night
PH is 6.0 to 6.2
Humidity is 55% to 60%
Fans in and out 10âout 6â in
The food Iâm using is Flora Grow 2 parts and flora micro
Iâm in door with 1000w hanging light with shade
Room is 6x6 and 9 feet tall
Not using CO2
And my reservoir is in another room stays cool about 10 feet from room.
No AC or humidifier I live in Canada so itâs cold a shot here.
Get my inside air from another room.
Sorry about being all over the place new to this site and just learning how it works
But all the help you can give is very well appreciated
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by the last pic she looks a little heat stressed, a little Iron def., and âover-wateredâ (low oxygen at roots)
check the air circulation and temps where that plant sits and check the roots.!
is this plant bigger then the rest.?
is it in a smaller container.?
any chance it gets more nutrient solution then the others.?
Itâs a little bigger then the rest
Heat is between 70Fand 77F
I have air pucks in every bucket
Res water is at 65
Lots of air movement
Thanks man I will keep going at it but at least I have an idea where to look
@Trevor75
First I want to welcome you to ILGM and to our outstanding community. " welcome my friend "
Now what I posted here is very large but you need to know all the facts so this is how I do things. If you can copy and paste to your files for future referance
Here is my pic of Nitrogen Toxicity
If you canât order online and canât find a good one-part base Bloom formula locally, you do
have other choices. Though not an ideal choice, most Cactus plant foods will contain good
nutrient ratios for growing cannabis during the budding stage. So in a pinch, you can use
the cactus nutrients that can be found at most gardening stores.
Different strains react differently to nitrogen toxicity. Some plants get dark green leaves
with no clawing. Some strains will get leaves that do the weird 90 degree bend at the tips,
while other strains or individual plants start curling like claws and then turn yellow / brown
and fall off like a deficiency. Yet these are all signs of too much nitrogen.
Signs of Nitrogen Toxicity
This marijuana plants has been fed too much nitrogen Dark green leaves and foliage
Leaf tips may turn down, without signs of overwatering.
You may notice yellowing on the affected leaves or other signs of nutrient deficiencies as
time goes on
Nitrogen toxicity is often but not always accompanied by nutrient burn
The Claw often seems random, affecting leaves here and there
Heat and pH problems will make the clawing worse, as they stress out the plant and lower her
defenses, and cause her to drink more water (and uptake more N)
As time goes on, the claw leaves will eventually start turning yellow, getting spots, and dying
This marijuana plants has been fed too much nitrogen
Too much nitrogen causes marijuana leaves to curl down like talons Dark green leaves are a sign
of nitrogen toxicity
Image
This cannabis seedling is dark because it was underwatered in a âhotâ soil mix (too much Nitrogen),
but after watering the plant as normal for a week or two, the plant started growing vigorously
Solution: Reduce the Nitrogen your plant is getting!
Reduce the amount of nitrogen that is being fed to the plants. If you are feeding extra
nutrients, cut down that amount. If you are in the flowering / budding stage, make sure
youâre using a formula thatâs specifically meant for flowering, or else it could have too
much nitrogen.
If you are not feeding extra nutrients, you may have âhotâ soil that has been giving your
plants extra nutrients. In that case, flush your plants with filtered, pHâed water to help
clear out the extra nitrogen.
Effected leaves likely wonât recover, but you should see the problem halt with no new leaves
being affected.
Nitrogen toxicity in marijuana makes clawed leaves that look like talons Ok, you ruled out
overwatering, now what?
When I first got started growing, everyone kept telling me that this particular kind of leaf
clawing was caused by under or overwatering my plants, pH problems, or heat problems.
Yet in my case, I knew that it wasnât over or under watering (I was growing in hydro, where
roots grow directly in water and air stones are constantly adding oxygen). I knew it wasnât
pH (my reservoir water had the right pH) and I knew it wasnât heat since the grow area was
slightly cooler than room temperature.
So then what was really causing my claw leaves?
Itâs understandable that other growers were mistaken. It is true that many stresses will
make any other problem worse.
Plus overwatering can cause a similar kind of leaf clawing (learn more below). And if you
do have nitrogen toxicity, than heat or pH problems will make the problem much worse.
Now, you may or may not know that marijuana (or any plant) needs an element known as
âNitrogenâ to grow.
In fact, nitrogen is one of the 3 nutrients that are included in almost every kind of plant food.
When looking at plant nutrients, youâll almost always see 3 numbers listed,
like 3-12-6 or 5-10-5. These numbers represent the ratio of Nitrogen (N), Phosphorous (P)
and Potassium (K) contained in the bottle. Just about all plant life on Earth needs these 3
elements to grow.
See the nutrient numbers listed on the front?
The very first number, â3â in the case of the picture to the right, always displays the
proportion of nitrogen in this nutrient bottle compared to the other 2 nutrients
(Phosphorus and Potassium respectively).
The reason nitrogen is in all plant nutrient formulations is because itâs vital to plant processes.
For marijuana plants, when they donât get enough nitrogen, the bottom leaves start turning
yellow and dying. Left unchecked, a nitrogen deficiency can cause the whole plant to eventually die.
However, this time weâre the dealing with the opposite problem: nitrogen toxicity, or too
much nitrogen.
Why You Should Treat And Prevent Nitrogen Toxicity
Marijuana plants that get too much Nitrogen in the vegetative stage donât grow as vigorously.
Too much nitrogen is especially harmful in the flowering stage, because this will cause your
plant to produce much smaller buds.
If you react quickly and reduce your nitrogen levels at the first sign of toxicity, your plant
will quickly recover.
Note: Some strains with the word âClawâ in the name tend to do The Claw more easily than others.
Problems with excess nitrogen are not common in the wild; itâs a lot more common to see nitrogen
toxicity on indoor plants, especially when overzealous growers go overboard with nutrients.
Occasionally youâll come across a strain or particular plant that likes lower levels of
nutrients, and when this happens, itâs important to realize the plant is showing signs of
toxicity, even if all the other plants in your garden seem fine.
One of the most common signs off too-many-nutrients is ânutrient burn,â or when the tips of
your leaf appear brown or burned. Yet there are specific signals your plant will display
when sheâs getting too much nitrogenâŚ
Recap: How You Know You Have a Nitrogen Toxicity
Dark green leaves and foliage
Leaf tips turn down, without signs of overwatering.
You may notice yellowing on the affected leaves or other signs of nutrient deficiencies as
time goes on
Nitrogen toxicity is often but not always accompanied by nutrient burn
The Claw often seems random, affecting leaves here and there
Heat and pH problems will make the clawing worse, as they stress out the plant and lower
her defenses, and cause her to drink more water (and uptake more N)
As time goes on, the claw leaves will eventually start turning yellow, getting spots, and
dying
Light and âThe Clawâ
The distance between the leaves to the lights or irregular light patterns from reflectors often
seem to affect the condition, which is why many growers believe that light is somehow causing
the problem.
You may notice this clawing first appears on dark green leaves that arenât getting enough light
(they arenât able to use up all their nitrogen and become nitrogen toxic).
The Claw in the Flowering Stage
If you use vegetative plant nutrients during the flowering stage, then theyâll deliver too
much nitrogen. This is why you need to get special nutrients meant for the blooming / flowering
stage. Youâll notice that flowering nutrients always contain a smaller percentage of nitrogen
(the first number) compared to nutrients for the vegetative stage. Learn more about marijuana
nutrients here.
Many growers mistakenly keep raising nutrient levels or adding additional nitrogen when they
see yellow leaves in the flowering stage, not realizing that itâs natural for plant leaves to
start yellowing as harvest approaches. Adding too much nitrogen in the flowering stage can
cause nitrogen toxicity even when you can see yellow lower leaves. Nitrogen toxicity in
flowering results in smaller yields and airy cannabis buds, so make sure to watch out!
Nitrogen toxic sativa buds Nitrogen toxicity in flowering will reduce bud size Nitrogen toxic
marijuana plant in flowering leaves curl down Nitrogen toxicity - too much nitrogen - Cannabis
growing problem
Note: During the last few weeks before harvest, marijuana plants starts pulling all the
remaining nitrogen from her leaves as part of the bud-making process. This causes yellowing
leaves starting towards the bottom of the plant. This is part of the natural flowering process
and you donât need to fight it. You may notice that marijuana leaves are yellowing in almost
all pictures of marijuana plants with big buds that are close to harvest. You tend to get smaller
yields at harvest from nitrogen-toxic plants with dark green leaves.
Itâs Normal For Marijuana Leaves To Start Turning Yellow As Harvest Time Approaches, Donât Keep
Adding More Nitrogen!
Marijuana plant ready for harvest, notice the yellowing leaves, which is a natural part of the
ripening process Itâs common for leaves to turn yellow towards the end of the flowering stage,
no need to fight it!
I know a lot of marijuana plant problems can look similar, but now that youâre armed with the
right information, youâll know exactly what to do if you see Nitrogen Toxicity affecting your
marijuana plants.
Nitrogen toxicity - Dark, curled, claw or talon leaves -
1 Like
Would this be the same in water not soil??
Iâm using 1000w hanging light with open shade and Iâm in grow stage.
Iâm about 3 weeks in grow now and only 1 is doing this and it is the biggest one of them all.
Really getting bad on new shoots they are very yellow today. Roots were a little cream colour but coming back to white.
Res temp is 66
Room temp 70F to 77F
Humidity 50% to 60%
Lots of air movement 10âfan out 6â fan intake
Light is about 28â away from biggest girl.
So everything you sent works for water as well I only see people using soil lol.
sounds like she needs a res change and more fertâs.!
the new growth yellowing looks like an iron def�??
when u change the nutrient solution check the air stone and maybe add another to that res�??
sounds like ventilation is covered, assuming all duct work is run properly,
what about air circulation inside the tent.?
any fans moving air around in there.?
maybe this chart will helpâŚ
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Thanks man I cleaned out my system washed everything put new water and food and itâs only been a few hours and already starting to look good again.
Added 4 more air pucks to the res and one in every bucket they are living it!!
Thanks again brother!!
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