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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
Complain
Selected By The Grower
Similar Grow Questions
Solved
TheObserver
Fatal ovewatering? Will she survive?
Ugh! One of my two plants Is dying. I suspect overwatering associated with some other issue I can't spot properly. 58 days flowering. It was my first flushing session, not a good start. Her sister has no problem. Poked holes in the dirt, raised temp, maxed the fans. What else?
Week 14
Leaves. Dropping off
Leaves. Color - Yellow
2y ago
2
2
Solved
PanGrower
Yellow leaves during flowering
I find such yellowed leaves in the lower part of my plant during flowering, I cut them off. Tell me, is this normal?
Week 10
Leaves. Color - Yellow
2y ago
4
Solved
Stigghiola
Salve ho allegato qui alcune foto di un paio di foglie potrebbe essere problema di umiditĂ ?
Week 12
Leaves. Color - Yellow
Leaves. Color - Dark-brown
6y ago
3
3
Solved
kokokrunz
What is the cause of the lower leaves turning yellow and some leaves turning white? .The cannabis plant just showed a female
Week 5
Leaves. Color - Yellow
4y ago
2
5
Solved
NewtDawg
Crashing and burning?
Mayday Mayday. Some very yellowing leaves which appear to be bending down. Alternating water and nutes, reduced quant, with good runoff PH in early 6’s, no working tds monitor. Lights @ 18”, full tilt. Too close and/or nute issue? Flush the shit out of it ur no? Thanks gang x
Week 8
Leaves. Curl down
Leaves. Color - Yellow
3y ago
3
Solved
EvilAbedii
Leavs turn yellow and fall off
leaves of my plants are loosing color slowley, turn yellow, sometimes develop brown stains and eventually fall off. It started in middle of the plant on lower leavs and then spread.
Leaves. Dropping off
Leaves. Color - Yellow
5y ago
2
Solved
Fishcake
Leafs drooping down slight yellowing
Hi my plant hasn't been looking happy for a while and I just can't get her to pray 🙏 again 29/10 flushed and fed the run off was 6.55 06/11 fed 2mlgrow per litre 1.2ml cal mag per litre
Leaves. Curl down
Leaves. Color - Yellow
Feeding. Deficiences
6y ago
3
1
Solved
That70sDude
Yellow spots on leaves
My Lemon Haze 10 has had these yellow marks on the 2nd set of leaves, it has not spread... gave it a little Cal/Mag, but I was wondering if I should clip the two branches these leaves are on. Suggestions Please.
Week 5
Leaves. Color - Yellow
5y ago
2
Solved
TheeLemon
Is she dying? / Is she flowering?
2 questions, separate pics. 1. Is she dying? Her leaves are going yellow, probably cus I accidentally ripped a chunk of roots during transplant 2. Is she flowering?
Buds. Other
Leaves. Color - Yellow
4y ago
1
1
Solved
AshsBuds
Yellow leaf
I’m 6 weeks into a 7-8 (suggested) flowering stage. Some of the lower leaves have gone yellow. Is this signs of the plant ending it’s run or something to be worried about?
Leaves. Color - Yellow
6y ago
2
3
Solved
roro_204
Yellow/ Lime Leaves ????
I have 3 grow rooms. I moved all the deficiency plants to 1 room. The whole half of the plant is turning really light yellow/ Are my lights too close to the plants ? Or is my feed to low?
Leaves. Color - Yellow
Setup. Lighting
Feeding. Deficiences
5y ago
4
3
Solved
Floristas
Yellowing leaves
I have couple of plants that started yellowing way to early its week 5 now, any idea why? we having extreme temperatures atm so its 27 degrees while they sleeping. Maybe they need extra flushing or sth like that?
Leaves. Color - Yellow
4y ago
2
8
Solved
lowrydr
Light green tops
I've got one plant with extra light green tops. Any suggestions or is this normal sometimes? See my diary for feeding details. I've treated all plants exactly the same the only difference would be the type of pot (airpot) and I didn't root prune like I did the others.
Leaves. Color - Yellow
1y ago
6
4
Solved
JoeNathan
Yellow parameter leaves
My lady is turning yellow around the edges of the lower leaves others are dark green. I just did a top dressing less than a week ago I used feather meal kelp meal alfalfa meal and some bat quano. Looking at charts it seems to be a nitrogen deficiency. I know feather meal is slow
Week 4
Leaves. Color - Yellow
3y ago
6
5
Solved
Fronti89
Jemand schon mal gesehn ?
Hat jemand schon einmal so ein Wachstum bei einer Pflanze gehabt? Ich habe sie jetzt ausgetauscht weil das Wachstum auch stagniert.
Leaves. Color - Yellow
2y ago
4
Solved
purgen
Can't deal with yellowing leaves in 4th week of flowering
Been having this problem for a few weeks. I suppose its deficiency of Mag and for the last week or so I've been giving increased portion of CalMag (for 1.5l of distilled water TriPart grow 2.1, micro 2.1, bloom 3, Calmag 12ml). Should I give them more time or its something else?
Leaves. Color - Yellow
5y ago
5
Solved
Akvinsky
Setup: Soil+vermiculite (5:2) Temperature in box is about 84F. Near the led 60w is about 90F Ph in - 4.5-5.0. Out - 6.0-6.5 (because of vermiculite?). Ppm in - 140 (only water last few days) . Out - 1500 On vegetative stage there was no problems with the same ph and ppm plevel.
Week 7
Leaves. Tips - Burnt
Leaves. Veins - yellow between
Leaves. Color - Yellow
6y ago
4
Solved
guggapeter
need help
Hi, also my Runtz have some issues. Flipped them yesterday. Is this a nitrogen issue? ph is between 6.5 and 7. growing in biobizz light mix and biobizz nutrients are used. Do they need more food or what can I do? thanks a lot!!
Leaves. Color - Yellow
6y ago
1
1
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
Katalist
Yellow leaf marks
Can anyone please tell me whats up with the yellow marks on the leafs?
Week 6
Leaves. Color - Yellow
5y ago
3
2