Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
By continuing to use the website or clicking Accept you consent to our cookies and personal data policy and confirm that you are at least 18 year old. For details please see Privacy Policy and Terms
Accept
Back to Grow Questions
Help :)
JoshuaTreez
started grow question 4y ago
Is this potassium deficiency? Or nitrogen toxicity?
Solved
Leaves. Color - Yellow
likes
HighRoller909
answered grow question 4y ago
yeah both. Nitrogen excess can create potassium deficiency, bear in mind. Too much N will block usage of K
1 like
Complain
Selected By The Grower
Organoman
answered grow question 4y ago
I would go for potassium deficiency.
likes
Complain
Similar Grow Questions
Solved
bigbud1080
Do I have an Iron Deficiency, if so How do I increase Iron levels (Already using Calmag)
I think I have an iron deficiency. New Growth is appearing yellow. HYDRO Rain water - (20ppm) PPM 750-900 (just upped) Canna Aqua A+B Calmag (0.35ml/L) PH was 6.2 (as there was a calcium deficiency so I raised it slightly) PH is now 5.8 (I read lower PH is better for Iron Intake
Leaves. Color - Yellow
5y ago
1
Solved
Crwfz1
Yellowing tops
Got slight yellowing on tops of the big gg but had my led at only 20.5 inches forgot to raise it i raised it to 23.5 hoping it helps but input wanted maby pH problem ? Not bad yet still growing fast and healthy just always wanna nip it in the ass at the first sign of problem
Week 4
Leaves. Color - Yellow
6y ago
2
2
Solved
Kamikaze
Yellowing leaves
Yellowing leaves. Woke up this morning to my lady looking more lighter in color. Medium is organic soil. Water ph 6.2. No ppm meter.
Week 7
Leaves. Color - Yellow
5y ago
1
1
Solved
Faust1a
Is she hungry?
Is she hungry?
Week 4
Leaves. Color - Yellow
4y ago
2
1
Solved
AntonioBanderas
No leaf growth seedlings
Hi, two of my autoflower seedlings are not growing altough they in week 2. Im adjusting light,pH,feeding but no leaf growth. The existing leafs also has a yellow color. Others doing well in same environment. Do you have any suggestions? Thanks
Week 1
Leaves. Color - Yellow
Plant. Stem - Weak
3y ago
4
4
Solved
Shemmie
lower leaves yellowing in 3 days?
Over the past 3 days my 2nd plant lower leaves started to yellow. Both are fed the same amount and the same rates. I noticed the one that is yellowing the leaves are upwards and that is a good sign, but the lower leaves are yellowing too fast. I am unsure what could cause this.
Week 2
Leaves. Color - Yellow
8mo ago
2
6
Solved
tiasmaaa
Calcium Deficiency ?
Got a little deficiency, can't find what it exactly is. Maybe a cause of this problem is that they got 3 days of nonstop light because I fucked up with the timer just before leaving house for 3 days
Week 7
Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
4
3
Solved
Pr3m_85
Nitrogen deficiency
Hi all, Can you confirm me a nitrogen deficiency ? Thanks !!! 😌
Leaves. Color - Yellow
5y ago
1
1
Solved
Floristas
yellow leafs
Guys what you think this might be? Flowering week 5
Leaves. Color - Yellow
5y ago
1
1
Solved
NorseGrower
Leaf Identification Please
Hello, I am in week 7 and only biggest of 3 has a few of these leaves. I feed every other watering and its been a week since nutrients. Should I cal-mag every watering?
Leaves. Color - Yellow
5y ago
3
Solved
HAPPYWEEDS
Yellowing leaves and yesterday curl down leaves after watering
I'm growing in coco. Is 500ml/2 days too short watering? Last growth happened the same with lower leaves (yellowing). It was because of nitrogen deficiency. But EC go to much up if I add more fert. I'm at 5.7 pH and 1.2 EC, 25-26°C and 65% RH now. That's why I use worm humus.
Leaves. Color - Yellow
4y ago
3
4
Solved
Jh2021
Yellowing of seedling leaves
I have started 3 red strawberry banana autos and 1 seems to be showing signs of yellowing on the starter leaves. Anyway of resolving this or is it a case of cutting my loses?
Leaves. Color - Yellow
4y ago
1
1
Solved
Mattyboyy
Leaves curling upwards and brown spots 10 week autoflower
My plant is worsening and I’m not sure what’s happening. I first thought it was heat stress but it has been a week and is still going down hill. Leaves curled upwards Brown spots on leaves Turning to crisp
Week 11
Leaves. Curl up
Leaves. Color - Yellow
5y ago
2
3
Solved
IceeTea31
slow growing
Strain: Cookies Gelato, Hulk Berry, Special Queen 1 all from RQS Light: SE3000 30cm 70% Soil: Regular Potting soil / no perlite they are very small today is day 14 since i‘ve put them into the soil. the leaves are kinda yellow. see more in my diar
Leaves. Color - Yellow
1y ago
2
6
Solved
1stForBuds
PLEASE ADVISE ME OF THE PROBLEM
Hi peeps this is the same question as yesterday...I got a problem with my zkittlez auto.... one day she she was fine then the next day I find her like this.. she has been fed I need advice of the possible cause please . photo taken with and without light
Leaves. Color - Yellow
4y ago
4
5
Solved
Hermes88
the plants're killing the lower leaves
They're growing BUT...the plants're killing the lower leaves.I don't understand why,this has been happening since parasites attacked them.Then when the parasites were gone and slowed for a while the leaves were dying.I put neem oil back on it (to prevent pests)and it started gain
Leaves. Color - Yellow
2y ago
6
Solved
ozzyy
purple-yellow leaves
in a very short time the leaves experienced this strange change. why is this happening?
Leaves. Color - Yellow
Leaves. Color - Dark-purple
5y ago
4
4
Solved
JustGrowWithIt420
Leaves bright green
So I have ruled out the fact that this is not a ph problem, have been properly watering at a consistent ph of 6.5, tested the run off today and it's at a pH of 6.4, also there is purple stems and the main stock has purple running through it as well?!?! Is this lack of pk? ca/mg?
Week 5
Leaves. Color - Yellow
Plant. Stem - Red or purple
4y ago
5
5
Solved
RaORa
Do not like the yellow color of the upper tips. Its normal ?
Week 4
Leaves. Color - Yellow
6y ago
1
1
Solved
Everest
yellowed leaves
The leaves started to turn yellow from the inside out. I don't know if it's a disability or an overdose. I'm using Biobizz. Someone solve? Is it in flowering with about 5 weeks to harvest, is it worth stirring or better leaving it like this?
Week 8
Leaves. Color - Yellow
4y ago
2
2