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Back to Grow Questions
Still have problems
Maincard
started grow question 4y ago
Still have problems, day 41,ph 6,5 tap water. Could it be Mag.? Use LED. THX.
Solved
Leaves. Color · Yellow
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Organoman
answered grow question 4y ago
Yellowing of the lower leaves during flowering is quite normal/common, but either add or up your P/K booster to help your plant, she will be hungry for phosphorous (P) and especially potassium (K) during flowering.
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Selected By The Grower
Organoman
answered grow question 4y ago
The damaged leaves won't recover, but it will prevent the other leaves from suffering the same fate.
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Similar Grow Questions
Solved
anacleto
Nutrient deficiency
What kind of deficiency these leaves are showing? Can this be lack of nitrogen? I am using a lower amount of BioBizz Grow these days (1ml/L), passing to BioBizz Bloom and Top Max as they are in the middle of the flowering stage. In case, should I integrate with more BioBizz Grow?
Week 6
Leaves. Color · Yellow
6y ago
3
3
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)
… Show more
Leaves. Color · Yellow
6y ago
1
Solved
Cannabis_carlitos
Why are leaves turning yellow?!?!
Wtf is happening to my plant? I have done the exact same things to both and one is completely fine. You can see image 1, one plant is fine the other yellow
Week 19
Leaves. Color · Yellow
4y ago
1
2
Solved
Trommler1997
Gelbe Blätter, kleine Blüten
Buds haven't grown for a week now. Leaves at the bottom are turning yellow and falling off. Fertilizer as per plan, pH value is between 6 and 7.
Week 7
Buds. Not fattening
Leaves. Color · Yellow
5y ago
2
3
Solved
Qaggy
Help me get her better.
Really need some advice on plant 3. She is now showing a lot of yellowing on bottom leaves. But now starting to move up to the top leaves. Can anyone help me get her better? Don’t like seeing her like this. I thought it was lockout at first but looks more like an N deficiency.
Week 8
Leaves. Color · Yellow
Plant. Wilting
6y ago
1
2
Solved
GhettoStyle
is it a potassium deficiency? or Cal Mag deficiency ?
please tell me!!! is it a potassium deficiency? or Cal Mag deficiency ?
Leaves. Color · Yellow
Leaves. Other
6y ago
4
6
Solved
Floyd
Leaves discolouration
I have noticed that a couple of leaves on 2 of the plants are getting yellow spots, the only thing I’ve done differently was that I gave the only plain water without nutrients for 2 days, anyone knows what could it be ? Thanks
Week 7
Leaves. Color · Yellow
6y ago
1
3
Solved
SlamFM
Which Deficiency(ies)?
After looking at some pictures and reverse image searching some of the attached pictures. I think it maybe both phosphorus and potassium deficiency.
Week 10
Leaves. Color · Yellow
Setup. Strain · Autoflowering
Feeding. Deficiencies
3y ago
6
1
Solved
ceomi69
Leave Tips Yellow and Brown on New Growth
The leave tips of my plants turned yellow and burnt after i gave them a bottled nutrient feed (organic). Unfortunately i failed to measure the PH of the Water (it was probably to high). This was one Week ago and the New Growth still show signs that something is wrong.
Leaves. Tips · Burnt
Leaves. Curl down
Leaves. Color · Yellow
2y ago
3
2
Solved
Kanabas
Yellow leaf tips
What can be causing this yellow tips, hydrophonic, ppm around 400 hp 6.7
Leaves. Color · Yellow
5y ago
3
2
Solved
CaptainChunk
First grow, yellow spots spreaded all over leaves. How can i fix it? My plant is sick, PLEASE HELP! get's worse. Suspecting septoria!
Hello. Been growing this Wedding Cake Auto for 9 days. LED 260W panel 3ft away from the plant(20/4 light schedule). Growing in biobizz lightmix+biotabs starter kit (no tablets yet), avg temp 24C, avg hum 55. Giving her only tap water (ph around 7-8) every 3 days (100-150 ml). thx
Leaves. Curl up
Leaves. Color · Yellow
Setup. Seedling
6y ago
5
7
Solved
Gonach
Hojas Amarillentas - Lemon King - 4-5 Semana vegetación
My plants are turning yellow. I'm just days away from switching to the 12/12 cycle since I foliar-fed with Big One. If it's a nitrogen deficiency, how could I resolve the lack? Thank you very much for your valuable comments.
Leaves. Color · Yellow
5y ago
1
5
Solved
PiterPan
Yellow parts of leaves.
Anyone can suggest what kind of problem is on the photo - brighter inner parts of leaves. My idea would be that it needs more Magnesium?
Week 7
Leaves. Color · Yellow
6y ago
2
2
Solved
Kwczekus
I may have over watered or it could be nutrient lockout. I only feed them every 10days to 2wks. I was switching them over from 1 fert to bloom fert by mixing 1 tsp of ea into 1 gal water but I did it 2x in a row. BEST WAY TO FIX THIS ???
Week 13
Leaves. Curl down
Leaves. Color · Yellow
4y ago
3
3
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
7y ago
6
Solved
MrGreen92
Can I fix a nitrogen deficiency with more terra tripart nutrients or do I need something else?
My Double Grape is showing signs of what looks like a nitrogen deficiency. My Ph is 7, temps 25c, humidity 40% and watering 1l every 3rd day. Does anyone know if I can increase my nitrogen my adding more of either micro, grow or bloom from the terra tripart range?
Week 7
Leaves. Color · Yellow
Feeding. Deficiencies
2y ago
6
2
Solved
ZoobZoob_farmZ
leaves
what to do if it does not improve?
Week 4
Leaves. Color · Yellow
Leaves. Color · Pale
5y ago
3
3
Solved
OutdoorUK
Can anyone tell me what’s causing this
Woke up to these spots/rash on a few of the lower leaves looks yellow or brown not to sure what it is
Week 9
Leaves. Color · Yellow
6y ago
1
2
Solved
Dillsnills
If my ppm intake is about the same as my ppm runoff but my pH runoff is way lower than intake should I be worried? Or what should I do?
If my ppm intake(705) is right about the same as my ppm runoff(790) but my pH intake(6.7) is off from my pH runoff(5.9) should I be worried or be trying to correct something or should it be fine? Humboldts Secret nutes, Glueberry Og Auto, rh48 temp74-76, advice appreciated.
Leaves. Color · Yellow
Setup. Strain · Autoflowering
Feeding. Deficiencies
5y ago
1
3
Solved
justlikegalaxy
yellowing lower leaves
3 weeks flowering yellowing of lower leaves is that normal
Week 10
Leaves. Color · Yellow
3y ago
7
3