The Grow Awards 2026 🏆 
What can I do? Leafs starting to turn yellow. First grower
Hazebergstarted grow question 2y ago
Yesterday, I noticed some leafs starting to turn yellow and also the tips of the top leafs to be a bit brown. So I watered (nutrition in the desc) and calmag 2 ml, because I thought it might be either lack of PK or cal mg. What else can I do? What about my watering schedule?
likes
Answer
Similar Grow Questions
Solved
PanGrower
The clone has bad leaves. Need helpTell 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
Solved
Smoth313
Yellow LeafsThats 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
Getupandgrow
Yellowing top of plantHi guys just wondering if anyone can tell me why there is yellowing at the top of my larger plant. It seems to be affecting a couple of larger fans and some of the new growth. This plant is growing at blistering speed could this be causing a def maybe?Week 8
Leaves. Color - Yellow
6y ago
3
2
Solved
SilverSlapdick
Bottom leaves yellowing at beginning of flowerSo my plants have been flowering for about a week now and the lower fan leaves are yellowing with brown spots. Should I be feeding them more of the flower girl I’m using or is this a deficiency of a specific nutrient? (following dr earth feeding schedule designed for cannabis)Week 5
Leaves. Color - Yellow
4y ago
4
7
Solved
hollyhustler
Is that just a light burn or could it be something else?One bud in the middle of my plant is much lighter than all the others, which all look healthy and green. I think it was due to the too small distance of my light, which was only 20cm (8") between canopy and light. I have now moved the light to 35cm (14").
What are your opinions?5y ago
4
3
Solved
TheNoobDude
Nutrient lockout, ph imbalance or nutrient burn?Unfortunately I don't have a ph meter, so my best guess is one or more of these problems: nutrient lockout, ph imbalance or nutrient burn.
The first 3 photos are from an Auto Northern Light and the last 2 are from an Auto Jack Herer.5y ago
1
1
Solved
Longlivebud
Flowering week 3.75Need help and cure? Leaves are yellowing maybe it needs feed again but feed her a week ago front left and front right are doing the same thing there all clones from same plant and the two rear are the same strain but are happy asf.just not medium size but small. Add maple sugar?Leaves. Color - Yellow
4y ago
2
3
Solved
Ozzyozz88
Is this potassium definitely ? Week 8Is this a potassium deficiency I see ? plz help week 8 of loweringLeaves. Color - Yellow
5y ago
1
3
Solved
nastygenetics
yellowing tipswhat could be causing this, its only on new growth on multiple plantsWeek 4
Leaves. Color - Yellow
1y ago
1
4
Solved
AlpineGoat
First time HESI soilWhat’s happening to my girls?
It’s the first time for me with minerals, currently using the HESI Soil Pack. Maaybe I’m putting a little too much SuperVit. Both autos, SweetZZ in 15L and Amnesia Lemon in 5L pot. Yellow fan leafs, red stem, lil weak..
Look at the pic and tell me :)5y ago
2
2
Solved
Dillsnills
Is this a deficiency or excess of nutes?Jus wondering what deficiency this is, it's really the only one that's looked like this a couple of the other ones have mild nute burn so I'm kinda confused advice input opinions greatly appreciated. Ppm intake 580 ppm runoff 1090. 5 week flowering pineapple Express AutoLeaves. Color - Yellow
Setup. Strain - Autoflowering
Feeding. Other
5y ago
5
3
Solved
Kosmic
Help..Seedling Overwatering/Nute. Problems?Does this look/sound like overwatering, or could a nutrient issue be to blame? I'm thinking or amending my soil with perlite tonight and really need some input from someone with more experience, thanksLeaves. Color - Yellow
Roots. Other
6y ago
1
1
Solved
eduard_shevardnadze
All newborn leaves are turning too much yellowAll newborn leaves are too much yellow. Do you have any idea what problem could be? 7-10 days ago turned to 12/12 for bloom phase. I think its light burn, BUT even lower newborn leaves are yellow.Buds. Other
Leaves. Color - Yellow
5y ago
2
Solved
Budmaniax
Need HelpIch brauche Hilfe .
Sorte: White widdow XXL Auto (Dinafem)
Ich bin 60 Tage in der Blüte und von unten nach oben vergilben die Blätter .
Sieht meiner Meinung nach Stickstoff oder Phosphormangel aus .
Kann mir bitte jemand helfenLeaves. Color - Yellow
Leaves. Color - Red or pink
5y ago
1
Solved
jkadabra
Yellowing in the top?What's with the yellowing in the top? Is it normal? It's in a very nice soil mixture and I've fertilized it with Osmocote, a popular slow release fertilizer: https://icl-sf.com/mx-es/products/ornamental_horticulture/osmocote-plus-standard-5-6-a903226-15-9-12/Week 5
Leaves. Color - Yellow
5y ago
2
1