The Grow Awards 2026 π
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Plant deficiency. yellow leaves brown tips. ph lockout or mag?
tuanmuda2k21
started grow question 4y ago
Hello, can anyone tell me what happens to her? is bcn critical xxl auto grow in dwc. age around 7 week.
Open
Leaves. Tips - Burnt
Leaves. Color - Yellow
likes
Answer
PEACEMAKER
answered grow question 4y ago
Yeah she should be fine after a week or so... good luck π
likes
Complain
tuanmuda2k21
answered grow question 4y ago
im flushed her with ph water right now. not adding nutes. let see.
likes
Complain
PEACEMAKER
answered grow question 4y ago
Cal mag and potassium Deficiency.. up ur cal mag and potassium. Good luck π
likes
Complain
Disn00f
answered grow question 4y ago
Looks like mag deficiency and the start of a potassium deficiency also.
likes
Complain
Similar Grow Questions
Solved
Xavierfourtwenty
So plants are looking good except for the Blueberry Autoflower, the leaves are twisting & overlapping & most are turning yellow, I know yellow usually means nitrogen deficiency but it shouldn't be with the nutrients it's receiving, anyone have any ideas or suggestions?
Week 4
Leaves. Color - Yellow
4y ago
6
3
Solved
Bigbuds420
Curly leaves, help!
Upwards curling of the leaves, any ideas? Also not sure if theyre all abit leggy or if they are on track
Week 2
Leaves. Curl up
Leaves. Color - Yellow
Plant. Too tall
6y ago
1
Solved
soul7stealer
Yellowing leaves after flush, week 8
Hello, after week 7 the leavs keep yellowing, i flushed twice in week 7 after nutrients overdose. Can u suggest any solution?
Week 7
Leaves. Color - Yellow
6y ago
6
Solved
Kawoot
In need of feedbacks for a first growing attempt
Hey there, this is my first attempt to grow, Iβm a newbie. Please give me some feedbacks on the pictures descriptions, Iβve wrote some stuff that Iβm worried about. Cheers to all and stay safe!
Week 4
Leaves. Tips - Burnt
Other. General questions
Plant. Too short
6y ago
1
1
Solved
koronkonko
What is this symptom? - Leaves
Hi Everyone! my girl is getting more and more yellow with brown dots/spots, starts symptoms one week ago. I gave her CalMag five days ago but is not better. Please, help. What is it? More photo in diary,
Week 8
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
2
Solved
SweetJB
I've been seeing old fan leaves and the bottom canopy turn yellow. And the Pineapple Express is not looking as Green as the other.
Hello! I've been noticing the blue dream fan leaves are tuning yellow. Also some new leaves hace a lighter green on the Edge of the leaves. Also the Pineapple Express is showing a pale green if you compare them. pH is 6, and I last watered with a quarter of what canna recommends
Week 6
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
2
2
Solved
Mr_weed_pt
Leaves dying
Having some trouble with my runts.started last week some of the leaves drying and becoming yellow. My ph is correct and I am using biobizz as nutrients I donβt give full strength . The temperature is high because is summer time here some times get to 30*c .
Week 11
Leaves. Color - Yellow
4y ago
3
3
Solved
MRHERB
Fastbuds girl scout cookies, nit surebif it is nute burn or light stress
Hello errrbody just want to find out if anyone knows what this might be thank you.PH 5.9 and only feeding calmag
Leaves. Tips - Burnt
Leaves. Color - Yellow
5y ago
5
6
Solved
Kigfjcf
Tox/def
Nutrient burn ? Light stress?
Leaves. Edges burnt
Leaves. Color - Yellow
2y ago
1
Solved
PanGrower
Yellow leaves during flowering
I find such yellowed leaves in the lower part of my plant during flowering, I cut them off. Tell me, is this normal?
Week 10
Leaves. Color - Yellow
2y ago
4
Solved
Cutery
Yellows leaves...
Hi gardeners...please how can i do to stop the yellows leaves ? I had stop watering like 6 days now. No chimik nutrients. Did i just wait for dryin'? Or do u have a miracle solutions please? (Try skin eggs, oignons, my son urin,my wife hairs...)
Leaves. Color - Yellow
6y ago
1
1
Solved
Ancient_Genetics
Lack of water or its something else.
Did it burn from nutrients, or was it due to a lack of phosphorus, or just because it didn't have water?. It seems to me that it is due to a lack of water, but a lack of phosphorus also occurs in a similar way.π
Leaves. Tips - Die
Leaves. Color - Yellow
Other. General questions
3y ago
6
Solved
Speeler
Leafs yellowing
Morning lads, just noticed that my plant leaves goes yellowing the ends of the leaves and i m not sure whats can cause that it is light stress ?
Leaves. Color - Yellow
5y ago
1
Solved
NeoCat
Brown spots on lower leaves - ph fluctuations?
I have discovered some brown spots on the lower leaves. I suspect it might be down to ph fluctuations - first time growing DWC so probably my bad! Does anyone agree? I should also add - I did a nutrient change a few days ago and for the first time added calmag & silicon
Week 5
Leaves. Color - Yellow
5y ago
1
3
Solved
2020Grower
Cal mag or nitrogen ?
Does anyone know if this is a cal mag issue? Low on cal mag? Or nitrogen
Leaves. Color - Yellow
5y ago
6
6
Solved
Dig_This69
Nitrogen deficiency?
1 maybe 2 of my roses developing yellow leaves curling down with some Burnt tips. Is this nitrogen deficiency? And can I fix with grow veg nutrient?
Week 9
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Pale
4y ago
3
2
Solved
KushManF
Yellowing and wilting of leaves
Hi Growers. My leaves are currently looking like this. I wanted to ask for some help or guidance as to what May have caused them to change colour like this
Leaves. Edges burnt
Leaves. Color - Yellow
Leaves. Other
4y ago
2
2
Solved
GoldenWeedGrower
Is this calcium deficiency ?
it seems calcium deficiency to me. Am I right or not ?
Week 6
Leaves. Twisted
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
EirikBloodAxe
Stress or deficiency?
Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency? Northern lights auto, 8-9 weeks. Canna Coco Nutrients.
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
maximoto
Yellowing Leaves, Red Stems, Brown patches.
pH is correct - run off ph, too. These are 2 out of 4 plants who show these signs. I gave less Flowering Nut in fear of giving too much Nitrogen. Cal/Mag is in use. Is it Phosphorus/Potassium def? I just flushed and gave BioFlores in recommended dosage again. Thoughts?
Leaves. Color - Yellow
4y ago
1
3