The Grow Awards 2026 🏆 
Whats going on with my leaves?
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Septooth
Why are the tops yellowish color?Why are buds sights so light colored? I just flipped it to 12/12 two days ago. The leaves look good and are dark, but tops are yellowish. It's in a 2x2 with 140W quantam board led at 24". Feeding it Mega Crop at 500 total ppm every other feeding.Leaves. Color - Yellow
6y ago
4
4
Solved
Jimmy_T43
First Grow - Yellow LeavesHi all! Yellow leaves problem.
I am giving are BioNova X-Cel and PK 13-14. I put like 1.6ml from the X-Cel and 0.6ml from the PK 13-14 in 2liters. (as the package says) and I water it every 3-4 day. Temp. Has been 32+ lately. BioBizz CalMag is coming today. Any Advice? THANKS!!!Week 8
Leaves. Color - Yellow
4y ago
6
8
Solved
Migo420
Seedling changing colorsBrand new to growing seedlings so could use some advice. As per the diary I thought it was bleaching and gave it slightly less light and then they started stretching again. Current environment: 75-77F; 64-66%RH; ~12DLI (9,000lux/24hr); 0.8VPD; MH: FC-8000 LED at 10%; 444EC, 6.1pHWeek 1
Leaves. Color - Yellow
2y ago
4
3
Solved
Kappakrusade
Leaf changed color and spotting, help!Any idea what I need to do to fix this? I think I over fed and then I recently did and RO flush. Then I fed it calcium herkley and harvest recharge in a little general organics bloom.Leaves. Color - Yellow
Leaves. Color - Mottling
5y ago
1
1
Solved
bodhi
yellow fan leaves and time till harvestyo! i'm trying to pull off an outdoor grow with 2 og kush, jack herer, and bubble gum. 1. do you all have any help in guessing when these would be ready for harvest - i have to plan a bit around it. for the OG? what about the jack herer? 2. are the yellow fan leaves ok? domo!Buds. Not fattening
Leaves. Color - Yellow
6y ago
3
3
Solved
Budcultivator
Leaf spots issueDoes anyone know what is causing the leaves to look like this?
Throughout the whole grow i've had brown spots as you can see in the older pictures, although adding calmag didn't really fix the issue.
If anyone has an idea of what this could be please let me know!6y ago
4
Solved
buddhi_coop
PH measuring for Organic GrowersIf I’m growing organically, do I measure my PH still? I heard that the PH up & down liquid isn’t organic & that organic growers should throw away there PH meter because the soil will adjust to what ever PH level I water them with. Is this true? I’m having a cal/mag deficiency.Other. General questions
Feeding. Deficiences
Feeding. Other
4y ago
3
3
Solved
Maincard
Still have problemsStill have problems, day 41,ph 6,5 tap water. Could it be Mag.? Use LED. THX.Leaves. Color - Yellow
3y ago
2
2
Solved
870Evo
What does my plant need and what do i do wrong?I need help, I can not exactly see what my problem is with my plants, I used the first time 70% coco and 30% perlite. I am just in the 4th week and fertilize my plants with: -Canna Coco A & B 1ml/l, Bio-Heaven 1ml/l, Bio-Bloom 1ml/l, Top-Max 0,8ml/l.
What do my plants need?Leaves. Tips - Burnt
Leaves. Curl up
Leaves. Color - Yellow
4y ago
3
4
Solved
AutoPotBubba
Light burn or nut deficiency?Can anyone help me I'm unsure if I have light burn or if I have a defincey . I can only see a few leafs in the middle of the grow which have this. The the rest around the edges of the tent are which is what leads me to believe that is is light burn. Can any confirm this. TyFeeding. Deficiences
5y ago
3
Solved
MrBlobbo
Nitrogen Toxicity?Week 2 flowering - the new growth is very thin, curling down and odd looking, is this nitrogen toxicity? Added pics so you can see rest of plant too. Thanks!Leaves. Curl down
Leaves. Other
Feeding. Deficiences
5y ago
4
11
Solved
I_roll_my_own_420
Hello guys. Im having Is it too much or too low nitrogen, thah causes my bottom leaves yellowing? 600w, 1m2 tent. 2m tall. 6x autos, 4 diffeternt models.Plants were too green and leave tips were pointed down. I stopped adding nut. for 11 days. Here is picture of today, right after watering with 2ml bloom in 1.5l bottle. ph 6.8, 340ppm. Should I feed them more, or not? Its week 5 from seed, and they are autoflowers. 4 dif. strainsLeaves. Curl down
Leaves. Color - Yellow
Setup. Strain - Autoflowering
6y ago
1
1
Solved
DanBilzerian
Text MessageWe have a text message from the Philippines. Can some one name all the Immobile nutrients.Feeding. Deficiences
6y ago
2
4
Solved
Dakushdoctor97
Yellowing leavesIs the yellowing of the older leaves normal? Or should I be concerned?Week 10
Leaves. Color - Yellow
5y ago
1
1
