The Grow Awards 2026 🏆
Start My Diary
Start My Diary
Login
Start My Diary
Home
Diaries
Strains
Shorts
Questions
Contests
Growers
Seeds
Breeders
Nutrients
Equipment
Blog
Login
Sign Up
Following
Follow
Brands
&
Growers
to get updates
Back to Grow Questions
Deficit
halexxo
started grow question 4y ago
Han comenzado a salir unas pequeñas manchas en las hojas de abajo de una de las plantas y no encuentro de que puede ser, alguien sabe? Gracias
Solved
Week 7
Leaves. Edges burnt
Leaves. Color - Dark-brown
likes
SanchoPanza
answered grow question 4y ago
it could very well be lack of calcium and magnesium. you can google "comon lack of nutrients cannabis plants", from the examples shown, this seems CalMag deal.
2 likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
renbuds
Brown spots on yellowing leaves close to Flush and Harvest
I'm at day 69 of my grow. The plant has been getting frostier and frostier, the leaves are starting to yellow, and I'm seeing the first signs of amber trichromes. Today I noticed the leaves are starting to get some brown spots. Should I be concerned so close to final flush?
Week 10
Leaves. Color - Dark-brown
4y ago
1
2
Solved
jmehl
I have 2 pictures of leaves with brown spots almost looks like it received too much light. Is this a result of too much light or perhaps Calcium deficiency?
Week 2
Leaves. Color - Dark-brown
7y ago
1
1
Solved
floodinghideout
Leaf burn? Deficiency? What am I looking at here?
Whats going on here? This is the only leaf of 2 plants that looks like this. FFtrio: 1tpsCalMag, 3tpsBigBloom, 2tpsGrowBig, 2tpsTigerBloom per gal. Plain PHd water every other feeding. Enter week4 of flower tomorrow, following FF schedule to a T and about to cut back/out Grow Big
Week 10
Leaves. Edges burnt
4y ago
2
3
Solved
Tiagorchaves
Brown spots on leaves
This brown spot showed up in some leaves. I've cut them. But some more showed up next day. Is this any micro nuts def or a fungus?
Week 4
Leaves. Color - Dark-brown
5y ago
2
4
Solved
flanderz
Is this nutrient burn?
I'm pretty sure this is nutrient burn. Using hot soil with a bit of extra worm castings on the top layer. The pH was also too high (approximately 8) but has since been corrected (now 6). Next layer on top came in nice and healthy. Can someone confirm there's nothing to do here?
Week 4
Leaves. Edges burnt
3y ago
1
3
Solved
IQuSX
Refresh Box-area
How to quickly put things in order in this box? There's also a tank...
Leaves. Color - Dark-brown
Other. Bugs
Techniques. ScrOG
3y ago
4
3
Solved
Kenpowarrior
Help brown leaves
What happend to them? Left them 2 days without water and nutriens. To dry out a little. Top soil was dry now. Give them water and food again. Was it water and nutriens shortness?
Leaves. Color - Dark-brown
5y ago
3
Solved
spankyxvi
Leaf identify
This is my test plant. Please help identify leaf. This is nute burn? Top of the plant look just fine. Should i worry? Before this happen I feed her 570ppm and try supercropping on main stem (twisted). She fine with 660ppm in the past so I confuse what is the problem. Thank you.
Leaves. Edges burnt
3y ago
4
4
Solved
potfromgreece
Spots on leaves
EMERGENCY! Strange spots on the leaves and white plaque on the other side. What should i do??
Week 3
Leaves. Color - Dark-brown
Leaves. Other
5y ago
5
Solved
KnightRider
My plant has mass nutrient burn on most of the leaves, I've flushed the roots. Is there anything else that can be done to help recovery or is it to late in flower. Also should I remove all the effected leaves or will they still convert energy for the plant? Thanks
Week 13
Leaves. Edges burnt
6y ago
6
3
Solved
Hazeterpz
Outdoor consulting ?
Hello guys m’y friend has a little outdoor grow and wants to know what’s wrong with his leaves, can someone tell me what he can do ?
Leaves. Edges burnt
Leaves. Color - Pale
5y ago
2
2
Solved
M4RKY
Hi guys my special queen has got brown leaves and they look like they're getting worse. It pretty close to harvest so I don't want it to die at this stage. It's my first grow so any tips or advice is appreciated. Thanks
Leaves. Color - Dark-brown
5y ago
1
Solved
buddhi_coop
Why do several of my leaves look like this ?
I be had quite a few leaves that look like this , I’ve taken them off the plant because I’m not sure what it is. Do you all know? I just want to make sure I’m not experiencing pests or mold.
Leaves. Edges burnt
Leaves. Tips - Die
Leaves. Other
5y ago
5
5
Solved
CRimp
Brown spots on leaves of joung plant
Hy fellow growers. This is my first Hydro grow (DWC) its a Royal Cookie by RoyalQueen and iam feeding with Hesi Grow at the moment at 1.0 EC she is 3weeks old and i have Some problems with rust spots on the leaves. Could anyone help me out please ! Thanks a lot 🤙🏻
Leaves. Color - Dark-brown
6y ago
1
1
Solved
NMGDOC
Coco Issues, over/under nutrients?
what can cause the brown/gold spots in the plant #2 and the yellow/brown tips in plant #3 recently had high humidity but already corrected. the coco didn't dry much. also, plant #5 dont grow in height pls help <3
Week 3
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
7
3
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
Salasasu
Blätter haben Flecken
Was könnte das sein 20/4 100watt Full Spektrum LED Abstand 35cm Full mix Erde Biobizz Blätter bekommen vereinzelt braune bis schwarze Flecken
Leaves. Color - Dark-brown
1y ago
1
Solved
Jan_Jan
Flecken auf Blatt und Halm oder Helikopter-Mutter
Die 2 Flecken auf dem vorderen Blatt und die dunklen Stellen am Halm beschäftigen mich ein bisschen. Glaubt ihr, die Pflanze hat ein Problem oder mache ich mir mal wieder zu viele Sorgen? VP 10. Steht im 11l BB AllMix und wurde einmal am Anfang der VP mit 3l gewässert.
Week 2
Leaves. Color - Dark-brown
Setup. Strain - Autoflowering
Setup. Outdoor
1y ago
4
4
Solved
Accidental_Grower84
Orange spots on fan leaves
What are these spots due to? I was using pH 6.5 tap water and bud candy 1mL per L for every watering. Just water from now on. Should I worry? 2 weeks left before harvest
Week 10
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
3
3
Solved
depplover49
It looks like my plant is dieing! Plants turning brown after intense watering period
Did I drown my plant? Stress it? I gave a lot of water in a short duration of time, and now 7 days later she is looking terrible! Read my diary on week 17 for more info!
Week 17
Leaves. Curl up
Leaves. Color - Dark-brown
Techniques. LST
3y ago
4
3