The Grow Awards 2026 🏆 
Brown patches
Chilipadistarted grow question 4y ago
Brown patches starting to appear on older fan leaves only. Calmag?
Solved
Leaves. Color - Dark-brown
likes
SlowpokeFuegobudanswered grow question 4y ago
Hi! You probably want to check on the pH of your drain at first.. :) If it's too low, there could be lots of deficiency signs but caused by low pH. All the best!!
jeri10831answered grow question 4y ago
When mine did that, it was cal-mag, but mine were hydroponic
1 like
Complain
Mikewithgreenthumbs420answered grow question 4y ago
Check this site out growweedeasy.com go under plant problems this should help you out
1 like
Complain
Similar Grow Questions
Solved
Jonnytats
Please help!! What is this?!?Please helpppp!!!! Anyone tell me what is going one here? My first grow and she already been through a lot trying to save her.
Feminized white widow from crop kings around week three of veg but severly stunted growth from being pulled out by a dog three day agoLeaves. Curl down
Leaves. Color - Dark-brown
Leaves. Other
5y ago
2
2
Solved
EirikBloodAxe
Stress or deficiency?Two leaves around main Cola. Yellowish with rust spots. Had its first day in tent with low humidity. Did some first time defoliation to increase air circulation. Stress or Potassium, Calcium deficiency?
Northern lights auto, 8-9 weeks. Canna Coco Nutrients.Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Elendil
Too much nutes?Is this from too much nutes ?Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
4
3
Solved
WulfBlud
Too much light or other deficiencyToo much light or some other deficiency?
I’ve been having some issues with yellowing leaves and some other issues with browning and wilting/curling which I thought was initially nutrient lock but what I noticed is all four plants were not stunted and continued to grow normally.Leaves. Color - Yellow
Leaves. Color - Dark-brown
Plant. Wilting
3y ago
4
Solved
elevensixty6
Calcium "deficiency" at 8ml/RO gal and still no improvements in weeks.. now my other tent has started the same spots.Cal excess or Mag problem? My Blueberry and Wedding Cake Autos are now spotting in new and old growth. Even at 8ml/gal CALiMAGic for a couple weeks no improvements. feeding nutes with two days of just calmagic RO water in between with runoff about 0.5 gal daily in FFOF soil4y ago
4
6
Solved
Krzymek
Is it normal?Hi its my first growing time so I'm not sure is it normal or not.
It's around second week of flowering
Plant is (I'm not sure) white widow automat or "quick one automat" I don't write any label 👏
As you can see something is happening on the leaves 🍃Leaves. Edges burnt
Leaves. Color - Dark-brown
3y ago
2
1
Solved
Tomi589
Hojas marronesHola soy nuevo, quería saber cual es el motivo de estas hojas amarillas marrones que tengo . Soy novato es mi tercer cultivo , podría ser quizás sobrefertilizacion , falta de algún nutriente o algún bicho? Envio fotos de las hojas afectadas y la planta en general.Leaves. Color - Dark-brown
5y ago
1
2
Solved
NoFaceNoName461
Leaves problem at end stageHi Guys,
Once agiam I need your help,
I’m at almost the end of the stage of Green gelato auto,
And suddenly the top leaves started first to get kind of Bronze colour and now it’s even getting worst,
What’s should I do and what might be the problem?Leaves. Color - Dark-brown
4y ago
3
3
Solved
PinkParrot
Brown leaves[ Lemon Orange 70% sativa ] Lot of brown leaves, starting from the tip
[ Persian pie 60% Indica ] less affected by the problem (same watering)
{ We tried }
PH 5,7 | & high PH 6,2
EC 0.9 | EC 1.2
Upper light
Cooler temp
Higher Fans speed
Note : Grow & Bloom bottles crystalized..3y ago
6
6
Solved
candyandy
Possible P Deficiency?Hey everyone, hope all is well. I noticed these past few days some dark spots appearing on some of my higher leaves. From what I’ve read it looks like it could be a Phosphorus deficiency. Any ideas? It’s on two out of three plants of the same strain. All same feeding schedule.Leaves. Color - Dark-brown
3y ago
1
2
Solved
GrowerNL
My runtz are drooling since the beginning i am growing on coco watering once every 4-5 days on this picture i haven’t given water for 3-4-5 days
I have a repost its a update
My runoff is 7800 EC pH 5,66 but i gave it 1200 my last watering i am gonna flushLeaves. Curl down
Leaves. Twisted
Leaves. Color - Dark-brown
5y ago
2
2
Solved
Complicate
Is this turning purple from temp changeSo it looks like what I thought was a brown spot (under the grow light), appears to be purple when I pulled it out to get a better look and stake it down. I did switch the light to something cooler, could this be from temp dropping. Not worried yet, just curious. Thanks6y ago
1
1
Solved
SLuGGeRNauT_420
WtfWtf is this just switched to remo nutes not overwatering only feed every 2 or 3 days when the medium is not dampLeaves. Curl down
Leaves. Twisted
Leaves. Color - Dark-brown
4y ago
1
3
Solved
Bembeto
Carencia de MgHojas en forma de bandera con manchas amarillas, sin dudas carencia de Mg, el problema es que no se que lo provoca, haré un estudio de acidez al suelo para estar seguro, pero dejo el hilo abierto a cultivadores más experimentados por si me podrían dar una mano con estoWeek 9
Leaves. Color - Dark-brown
4y ago
4
5