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?
Lapolda
started grow question 4y ago
Hello, everyone. Thanks in advance for the advice. Is this a nutrient deficiency?
Solved
Week 12
Leaves. Color - Dark-brown
likes
HerbalEdu
answered grow question 4y ago
Look like first sign of calcium deficiency: https://loudclouds.co/wp-content/uploads/2016/07/marijuana-deficiency-chart-jorge-cervantes.jpg
likes
Complain
Selected By The Grower
Similar Grow Questions
Solved
CreamOfTheCrop
Brown/Grey spots on the leaves
Hey, I hope this is my last question for this grow :P I've noticed some brown/grey spots on the yellowing leaves, what could they be, deficiencies or sunburn? I'm still feeding the plant with nutes, but the next watering will be a flush, so I didn't expect discoloring before that
Week 11
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Leaves. Color - Black or grey
5y ago
1
1
Solved
GingerSkunk
Are my leaves heat stressed?
My leaves are looking sad on the new plants, I had this issue in my tent on my last grow but put it down to heat stresse, I’ve improved my ventilation added a air cooler and humidifier, but they still look sad, please help
Leaves. Color - Dark-brown
4y ago
1
1
Solved
Kagonisss
leaves problem
hi can i have a litthe help my gorrilla 1 have a problem with the lower leaves it curl up and turn like brownish thank u he have 1/2 week ago to harvest
Week 13
Leaves. Color - Dark-brown
5y ago
4
3
Solved
eurorack
Leaves on Pink Kush CBD
Any hints on what this might be? Check the full diary for nutes and stuff, maybe time to stop the PK13/14 and CalMag now they have pushed a load of flowers out?
Week 7
Leaves. Color - Dark-brown
3y ago
2
2
Solved
LeCuack
No se porque se torno amarilla ec esta normal y ph también. Luz se subio para prevenir quema.
Week 8
Leaves. Curl up
Leaves. Color - Yellow
Leaves. Color - Dark-brown
4y ago
2
2
Solved
WeedBerry
Leaves
Hi leaves are going to 2 shades of green any help?
Leaves. Color - Dark-brown
5y ago
1
1
Solved
NorCal311
I have a couple plants that have some leaf thing going on. I have not done a bunch of defoliation this grow and they are getting old. The pics from week 14 are original leaf's. Some of these leaf's got splashed during feeding
Week 14
Leaves. Color - Dark-brown
6y ago
4
2
Solved
Misanthrope
Dry brittle leaves
Discoloured older leaves curling up at the edges and turning dry and brittle. I think my problem is over or under watering. I've been very careful to avoid overwatering so I'm leaning towards the latter but what I've read online suggests dry/brittle means overwatering. Thoughts?
Week 4
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
3
4
Solved
KushManF
Leaves are yellowing
Leaves are going a yellow and brown colour. Not sure what is going on? Any advice?
Week 9
Leaves. Color - Yellow
Leaves. Color - Dark-brown
5y ago
1
1
Solved
TripleCcannabis
Seedling Curling up and browning
Neither one of my new seedlings seem to be doing very well. This one isnt as brown as the other but its leaves are starting to curl. There still ridged but are curling up.
Week 1
Leaves. Curl down
Leaves. Color - Dark-brown
5y ago
1
Solved
leoen2
Lemon Ice 2.0 - Browning leaves Weird Growth
Anyone got an idea what may have caused the weird looking lemon ice to grow like that? I'm guessing a fungal infection or mold, which is weird tho cuz all of them got the same exact feed, time in the plugs etc. Basically its odd because it only affected one (thank fuck), ideas?
Week 2
Leaves. Color - Dark-brown
Leaves. Other
Plant. Other
4y ago
2
3
Solved
SolitudeCorners
Curl up and brown spot leaves
Leaves curl up and has brown spot around their blade is it potassium deficiency or salt built up? thank for any advice
Week 17
Leaves. Curl up
Leaves. Color - Dark-brown
5y ago
1
1
Solved
Habosabin
Brown spots with slight yellowing
Hello gromies. I'm seeing some slight yellowing and brown spots on my fan leaves. I've been bottom feeding so maybe it's a lock out issue with calmag. I flushed with tap to get some run off. Any suggestions?
Week 6
Leaves. Color - Dark-brown
5y ago
1
1
Solved
MrBridog
Help please !
Help me what’s the lack off?
Leaves. Color - Dark-brown
4y ago
2
4
Solved
EddieEd
Need help with diagnosis
What sort of disease/deficiency/problems am I facing here?
Leaves. Edges burnt
Leaves. Curl up
Leaves. Color - Dark-brown
4y ago
4
Solved
Mack_420
Wtf?
Hallo Liebe Community, kann mir einer sagen was hier vor sich geht?
Week 4
Leaves. Color - Dark-brown
2y ago
6
Solved
Reefaboi
Still
Can somebody help me, kind of weird the rust still spreading on that plant but not on other, I was wondering if it's not simply a defo
Week 7
Leaves. Color - Dark-brown
5y ago
1
2
Solved
Puffdamagikchillum
OUCH!! What is it?
Deficiency or toxicity? This is in ffhf/coco/Perlite/ewc ph'd @ 6.5 ff nute trio +Calimagic. feed and water once a week in 5gal pot led 14" above plant. My diary tells the rest. 1/4tsp Calimagic 1/2tsp of trio 2lts water.
Leaves. Color - Dark-brown
6y ago
1
1
Solved
Colorado_cookies
Discoloration on leaves, please help! First week of flower
Discoloration on leaf. Doubt it’s nutrient burn? Nitrogen deficiency maybe? Too much cal mag? Help! Only on one of my four plants. 😡
Leaves. Color - Dark-brown
5y ago
4
Solved
Dillsnills
Can someone plzz help with what is going on?
Can someone plzz help me w what's going on, not sure if it has to do with nute deficiency,nute burn, ph or what it's only w 2 of my plants a lemon autoseedmans Orange Sherbert Auto fast buds, should I trim the leaves that r affected or in general what can I do. Ph 6.5 wk6flowerin
Leaves. Color - Yellow
Leaves. Color - Dark-brown
Feeding. Deficiences
5y ago
1
2