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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
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CRiSPrGrow
answered grow question 5y ago
that's simple calcium deficiency, you always need cal mag when you grow indoors. hope this helps ! 🚀
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Selected By The Grower
Similar Grow Questions
Solved
Half_Synthetic_Growing
Droopy leaves, weird spots.
Does anyone know what's wrong with that bottom left plant? Those spots appeared pretty soon after I cleaned those filters. I'm thinking that it's a stress caused by that cleanse, no chemicals or such were used, but some roots were torn in the process. Deficiency? Disease?
Week 9
Leaves. Curl down
Leaves. Color - Yellow
Plant. Wilting
3y ago
4
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Solved
Vexar
Yellow tips and curled down leaves
I don't understand what's happening, my plant has started to show a calcium deficiency and so i gave her 2 ml/l of calmag but it also has those yellow tips and leaves that curl down
Week 4
Leaves. Tips - Burnt
Leaves. Curl down
Leaves. Color - Yellow
6y ago
3
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Solved
Goodvibs
Carry on or start again
First try dwc and has not gone well from the start. Plants whent very yellow way more than they are now., I think they got way to wet. bigger one has roots just showing threw net. Question is should I bin the lot and start again 🤷
Leaves. Color - Yellow
Roots. Other
5y ago
1
2
Solved
JO_GROW
Yellow curly leaves
Hi guys I have some problems with yellowing/ curly dying leaves. Description and more pics in the diary, please help if you think you know what the problem is. Thanks!
Week 1
Leaves. Curl up
Leaves. Twisted
Leaves. Color - Yellow
6y ago
2
5
Solved
Marquise_ao_Sul
Why the new leaves on the plant are more yellow than usual? Any advise? Ser picture! Thanks
Week 6
Leaves. Color - Yellow
8y ago
4
3
Solved
cropduster
Problems in second week of flower, any ideas? Yellowing with some brown spots and purple stems.
First signs of issues? Medium - Pro mix hp Nutrients Gaia Green (75/25 mix of 444 and 284 in base) Top dressed week 4 with 3 tbs of 284 and 3 tbs worm castings two teas - first veg tea second bloom tea 3/4 to 1L every two days of well water ph 6.5 ppm 213 Purple stems from stalk
Week 6
Leaves. Curl up
Leaves. Color - Yellow
Plant. Stem - Red or purple
5y ago
2
3
Solved
ThatFcukinChronic
Deficiency?
My current grow is on its 5th week of flower and many lower leaves on each plant have begun to yellow then develop brown spots. I’ve did a little bit of research and I think it could be a nitrogen deficiency. Any help is appreciated.
Leaves. Curl down
Leaves. Color - Yellow
4y ago
2
5
Solved
Maycon_heiro
What may caused the issues
Checked the runoff and confirmed 6.2PH and 130 ppm on water. checked on my Tank and same was happening. so gave a 603 ppm solution of cal/mag. Grow A+B perfect pH connoisseur, H2O2 at 5.8 pH. Will await for results. i think at week 3 theyre supposed to eat at least 600 ppm?
Leaves. Tips - Burnt
Leaves. Color - Yellow
1y ago
2
1
Solved
yokotasan
yellow parts on young plant (see pic)
2nd week (day 9). No nutes. soil plagron light mix. Noticed today yellowish dots and a one part looks like line? wtf is this?)) I should notice that it was +32 today in my room...
Week 2
Leaves. Color - Yellow
3y ago
2
4
Solved
deanondeanon
leaves dying
Hi! My bottom leaves are getting yellow and seems to be dying almost, im growing an blue cheese autoflower and its the first week of flowering, should i leave them to die or should i cut them off?
Leaves. Color - Yellow
6y ago
1
1
Solved
Chillymann
How do i fix this.The ph was way to high but i corrected it.My question is do i have to add more nitrogen to the feeding or will the plants go green again by themselves.How long does it take on average for yellowing plants to recover.
Week 3
Leaves. Color - Yellow
5y ago
2
2
Solved
TechnoNinja
Orange/yellowish dots on my auto blueberry
Is this calcium or magnesium gromies? Safeee
Leaves. Color - Yellow
5y ago
1
2
Solved
Desert420
Yellowing of leaves
I am in my 8th week now 3red week of flowering, the bottom leaves are turning yellow, it started with brown spots now going yellow, I water only when soil is almost dry, I weed it with nova grow I did ad some calcium aweek back when leaves got spots thinking it's a calcium defici
Week 7
Leaves. Color - Yellow
6y ago
3
7
Solved
TupacFR
Spray N or P ? Deficiency
Hey , I try to found exactly what’s the problem with this plant . The leaves become yellow around the leaf. I’ve some brown spot too . I don’t know what is it ? A deficiency ? Can I apply a little spray ? ( under leaf and not on the bud ) what is the best ,giving N or P ? Thanks
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
3
2
Solved
grow_it420
Yellow leaves
Hi Growers, Is this calcium deficiency? I'm not sure, and only one of my 2 white widows show signs of deficiency. Thanks
Week 11
Leaves. Color - Yellow
6y ago
4
4
Solved
Cr8grow
N or Mag deficiency or other? Leaf tips browning, curling up. Pics added to my diary week 10 Day 1 week 11, start week 5 flower Soil Roots Organics 707; amended perlite, worm casings, silica Temp 64 - 81 RH 40 - 35 Water PH 6.5 Nutrients - Superthrive, Budswel, Biocanna Flores
Week 1
Leaves. Color - Yellow
6y ago
15
7
Solved
GroweRoss
pH or root issue. Temp increase at same time.
Either pH or root issue ..? As plants recently had a growth spurt the temp in tent increased from 28 to 33, does this happen with plant growth? Nothing else changed.
Leaves. Color - Yellow
5y ago
3
Solved
DANNYBLUE1
Why is One growing perfect the other is struggling
Why is one of them doing so well growing better deep green leaves and the other is at least 2 inch shorter and leaves are yellowish. I’ve been feeding them both the same I’ve missed the shoter one of the soil is still damp. I’m guessing nutrient over load so thinking do a flush
Week 3
Leaves. Tips - Burnt
Leaves. Color - Yellow
Plant. Too short
3y ago
4
6
Solved
Tbag2020
Yellowing and weird shapes for new growth
My plant is showing yellow and weird shapes for new growth I searched and it looked like calcium deficiancy I tried giving it doses of calmag still no improvement, can someone help please
Leaves. Curl up
Leaves. Color - Yellow
5y ago
3
Solved
poke_smot
Yellow and brown can't be good
Getting worried about a couple of my plants. Lower leaves looking like this. Can't find a match on the diagnostic charts. Any advice much appreciated. Thank you
Leaves. Color - Yellow
4y ago
2
4