The Grow Awards 2026 🏆 
Burnt and yellowing
Robertsanswered grow question 4y ago
Looks like your ph is off. If growing in coco the ph in, and run off out in vegging is 5.8. Flowering is 6.2, 6.3. Coco must also stay wet. It is hydro in a potter. 👍
likes
Complain
Grey_Wolfanswered grow question 4y ago
@Dean1 she does look a little deficient mate but I can also see what appears to be some heat or light damage to those first true leaves
If you think its light related raise the lights higher or if it is temp try to allow more air movement
I am not a fan of using just coco for many reasons one of which is nutrient lockouts etc
1 like
Complain
Similar Grow Questions
Solved
GhettoStyle
friends tell me what it can be!?I don't understand why the leaves have such a color!! like cal-mag added and EC 0.5 is not so big for this stage of growth !!! I don't understand why the leaves have such a color(Leaves. Color - Yellow
Leaves. Other
Feeding. Deficiences
5y ago
3
4
Solved
Trichome_threshold
Magnesium nutrient lock out, triggered by too much potassium ?@Burmese
Thank you so much for your help. 🙏😊 I think it was a magnesium nutrient lock out, triggered by too much potassium. I sprayed some water with Epsom salt on the leaves and it looks like it is getting better. 👍😉Week 4
Leaves. Color - Yellow
5y ago
4
5
Solved
Jhort
Is this lockout or some sort of deficiency? Soilless medium- using biothrive, biogrow, and cal-mag. Autoflower Lemond auto
Prior to yellowing the plant looked very droopy for 2 wks.
Roots look greatLeaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
5y ago
1
2
Solved
SlamFM
Natural or Problem?Is this natural yellowing or is there a problem? pH to 6.3 and runoff is 5.7. The stem is awfully purple, watering/feeding is where I struggle. 1st pic - 4/21 and 2nd pic - today(4/24). Seems to have escalated over the last few days. Do-si-do auto about 10 weeks.Leaves. Color - Yellow
Plant. Stem - Red or purple
2y ago
3
5
Solved
purgen
Yellow parts on very young leavesShe's only 2 weeks old and some leaves started yellowing. Should I be concerned or it's a normal thing? Watered her a few times with distilled water (no nutes). Also, there is about 30-40cm distance between the plant and the light (SF1000, put on ~50 power)Leaves. Color - Yellow
4y ago
1
1
Solved
Ionic20
Advice please :)This is 24 hours later. Should I just give some calmag now even tho the soil is still damp?Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
3
Solved
Lasninasverdes
Que carencias y/o excesos veis??Muy buenas fumones que penséis que hay en la planta carencias o excesos y de qué.
Yo creía que había una carencia de potasio pero le añadido más y el problema de las puntas quemadas ha seguido.Leaves. Color - Yellow
Other. Other
Plant. Other
4y ago
3
4
Solved
DabNinja710
Nitrogen deficiency? What can I do to fix it?My gorilla girl xl aut is getting a nitrogen deficiency. I think? Im using megacrop. about a ½teaspoon every watering. Also a 1/16tsp of bud explosion and sweet candy. Should I add more? I have the whole line of fox farm nutrients. Anything from there that would help?5y ago
1
1
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
Ghost24
Yellowing from the topRuntz Auto
Week 6 of flowering
Growing hydroponics using silica, MJ plant prod finisher, cal mag, hydroguard, root drench, bud enhancer and sweetener. Mixed exactly in that order.
pH 5.9 (using pH pen for readings)
yellowing from the top
I don't have ppm/EC meter or light meterLeaves. Tips - Burnt
Leaves. Color - Yellow
2y ago
3
4
Solved
oppilF
Yellow leaves (a lot of them)The plant is showing a lot of yellow leaves. I think it's a little bit early to speak about a natural loss by flowering, or not?
There are also a lot of yellowish leaves (more yellow than green even): what is the problem?
the red leaves are normal to this strain I think? Thanks!Week 10
Leaves. Color - Yellow
6y ago
4
3
Solved
BongRip
1st Week ProblemMy plants are in day 7 and I noticed some problems with it. A new set of leaves is coming out yellow in one of my plants and also I am seeing some spots on 2 other plants. They are under 200cfl with the distance of 6 inches. Temperature goes up to 85'F sometimes. Help out pls!Leaves. Color - Yellow
5y ago
4
4
Solved
Easyspeesy
Lower leafWhat’s happening to my lower leafs ? Is this nute burn ? Only on very bottom leafs.Week 5
Leaves. Color - Yellow
6y ago
2
3
Solved
Fallingthroughstars
Heavy fast yellowingI flushed my plant because of too high ppm reading from run off and now she seems to be going all yellow. Is this normal for this stage of the grow (all trichomes still white and small buds) or is this a definite nutrients deficiency during flowering?4y ago
5
4
Solved
1stmanny
older leaves are turn yellow. should i top dress,Hi Growers !!
Is this normal for autos, there 64 days old, 21days to go, there in soil and the ph is 6.7 Dry organic Nutrient, most of the bigger older fan leases are turning yellow. I feed them around week 4-5, should I Top dress my Pots? and add a Lil more Dry Nutrient6y ago
7
4