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Back to Grow Questions
Excess or lack of nutrients?
Willyweed10
started grow question 5y ago
the older leaves are not dark green but light green with burnt tips and sunburn spots. use of light mix plagron with bloom algae. 1.5 ml per half liter of water for two times a week and once only tap water.
Solved
Leaves. Color · Yellow
likes
CRiSPrGrow
answered grow question 5y ago
that's simple calcium deficiency, you always need cal mag when you grow indoors. hope this helps ! 🚀
1 like
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Selected By The Grower
Similar Grow Questions
Solved
Gteh420
Some newer leaves from older stems looks almost bright green and paper thin comparrd to the deep green older leaves and some of the ones top look slightly discoloured at the tips. This is an af at week 7 of veg. No signs of flower as far as I know.
Week 7
Leaves. Color · Yellow
8y ago
1
1
Solved
Frnikola
What to do? → BF Runtz Auto - Day 42 - RH70, 80F in BioBizz Light Soil
On my last post, I was advised I have N tox, so I watered w/o BioGrow, just BioBloom and it's gotten much worse. The runoff EC was 1.5 (watered with 0.8, runoff pH was okay), so I’m guessing it's salt buildup. I plan to flush when this watering dries out—any thoughts?
Buds. Not fattening
Leaves. Color · Yellow
Leaves. Color · Black or grey
2y ago
1
Solved
JandM
Starting to yellow
So I had good growth up until 2 days ago when the one plant started to yellow. I had them going 24 hours a day and I got grow dots mixed in the bottom two thirds of the pots. Could this be light stress? or could it be hungry?
Leaves. Color · Yellow
2y ago
1
7
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
6y ago
1
Solved
DelightfulCannaCo
Yellow edges on new growth
What could cause the yellow edges on the growth of new leaves that’s affecting only 1 plant. Soil of this plant also seems to be more moist than the others but all are bottom fed via autopots.
Week 6
Leaves. Color · Yellow
6y ago
2
2
Solved
MiyamotoMusashi
Deficiency and overfeeding
hello growers, i have a problem with some of my plants. they suffer nitrogen deficiency and a slithy overfeeding. what am i suppost to cure? im doing 0,3ml biobloom, 0.3ml/l biogrow, 0.3 calmag, 0,3 fishomix, 1ml algamic, 700ml a day of tap water, ph 6,80. light 18-6 under a 600w
Leaves. Tips · Burnt
Leaves. Color · Yellow
Feeding. Deficiencies
5y ago
6
Solved
Labbu
Dont want to loose it
11 days seedling..growing in coco mix..what could be the reason behind drooping leaves and yellow tips...other seedling in same pot looks normal though.
Leaves. Color · Yellow
5y ago
2
3
Solved
Jayvo
Light green / yellow marks on leaves
I was just wondering why I have green / yellow marks on my leaves, I think it’s because of light stress but I’m not too sure, I’ve been giving it 700PPM in nutrients, thanks in advance
Leaves. Color · Yellow
6y ago
1
1
Solved
Dillsnills
Deficiency of P and K?
Can someone help me with what is going on w this Pineapple Express Auto Fast Buds, week 8 of flowering, it looks like a nute deficiency, P and K. Looking for advice input opinions greatly appreciated. Run off ppm 1100 intake 350 ph 6.5-6.6.
Leaves. Curl down
Leaves. Color · Yellow
Feeding. Deficiencies
6y ago
1
1
Solved
jacarezin
Yellowing Leave's Tips, overfert?
They seem to be feeling overfert as the leaves tips are turning yellow, but i am not sure about what to do... i think I should now water without fertilizers but I don't know how long before I can feed them again, any help would be appreciated.
Week 8
Leaves. Color · Yellow
Feeding. Other
6y ago
5
5
Solved
neros13
Flowering issues
First time! Everything perfect until 1st week flowering. After that started the issues. Is overfeeding, is hungry, to much water? The second week flowering I started Cal mag, alg a mic, bioheaven to help the situation. Before that only npk. Watering 1-2 per week
Week 2
Leaves. Edges burnt
Leaves. Color · Yellow
Plant. Too short
4y ago
4
5
Solved
Casualguy
Yellow spots
I’m showing more of this discoloration on 2 more leads from a couple weeks ago
Week 6
Leaves. Color · Yellow
5y ago
1
3
Solved
Weedmatze
Yellow spots on lower leaves
Leaves. Color · Yellow
3y ago
4
3
Solved
Dillsnills
Advice on what's going on with this plant some yellow and brown on the leaves
Looking for help to diagnose what's going on w this plant,did a mini flush ppm runoff 610 intake 345ppm, wk 7 flowering Girl Scout Cookie Auto GardenOfGreen, should I do a nute feeding next,FF chaching,big bud? Ph6.5. Advice input opinions greatly appreciated.
Leaves. Color · Yellow
Leaves. Color · Dark-brown
Feeding. Deficiencies
6y ago
1
1
Solved
Katalist
What could possibly cause all this suffering? =(
Does anyone know what could be the cause of this? the plants suffered from white flies which I am trying to get rid of.
Week 10
Leaves. Color · Yellow
5y ago
4
3
Solved
Jeremi420
Hey guys. Leaves at the top with yellow tips. Any ideas? Thanks ✌️ sorry for the terrible photo quality, but they're yellow like this 👊.
Week 6
Leaves. Color · Yellow
6y ago
4
4
Solved
Smoth313
Yellow Leafs
Thats my sweet cheese auto start of week 8 and some fan leafs turn yellow. what can i do?
Week 8
Leaves. Color · Yellow
2y ago
1
Solved
Lasninasverdes
¿¿ Qué problema creen que presenta ??
Temperature 18-26 4th day of flowering and first watering of flowering. 7L pots. Watering 750ml per plant. BioGrow 2ml/L, BioBloom 1ml/L, TopMax 1ml/L. pH 5.6 Humidity 50% Photodependent 60% sativa Water every time the soil is dry but from that same day
Leaves. Color · Yellow
Other. Other
Plant. Other
5y ago
1
1
Solved
TarantulaAnarchia
Deficienty
Hi. What is it missing? Is it a lack of potassium and phosphorus? or rather due to weather or old age. This is an older leaf from the middle part of the plant
Week 30
Leaves. Color · Yellow
3y ago
1
Solved
PanGrower
The clone has bad leaves. Need help
Tell me, friends, what's wrong with my clone, I still can't figure out what's missing or too much. When I gave him just water PSH 6, ppm 10-15, he turned yellow. When I added water with a minimum amount of fertilizer for 1 week for vegetation, it also turned yellow.
Leaves. Color · Yellow
Setup. Clones
2y ago
1