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
Why has one of my leaves got marks on like this!?
Smithy1992
started grow question 4y ago
Only found the one leaf effected any idea what this could be,?
Open
Leaves. Other
likes
Answer
Fruitgrower
answered grow question 4y ago
That's defo calcium defeciency but can be caused by a bad pH range. Check that too 👍🌱
likes
Complain
Smithy1992
answered grow question 4y ago
Gtowing in coco with house and garden nutrients
likes
Complain
Smithy1992
answered grow question 4y ago
I lowered my ph as someone said drop it as I was doing 6.5 ph and ever since I have had issues lol
likes
Complain
GrowCN
answered grow question 4y ago
It could be a calcium deficiency. I would also check your pH.
1 like
Complain
Similar Grow Questions
Solved
bypado_farm
calcium and magnesium deficiency symptoms?
ph balanced, 6.4 - 6.5 lamp distance from 45 to 65cm now (serrated edges and curling up) no water with nutrients fell on the leaves. I will try to not spoon feed everyday in this substrate (biobizz all mix) didn't see any bugs under leaves( no microscope)
Leaves. Other
4y ago
2
4
Solved
Tarquin
Thin leaves?
I think the leaves are looking a little thin. Could I be under-watering?
Week 2
Leaves. Other
5y ago
1
1
Solved
SirDillton
Seedling leaves twisting/ curling
Leaf curling/twisting on first few sets of fan leaves on seedlings? What Causes it? Temp is 28-30c RH65%, watering 500 ml every 3-4 days, Ph6 water and has no nutrients. Par value on lights roughly 400.
Week 1
Leaves. Other
6y ago
12
6
Solved
Elpicor
Zebra leaf - cream cookies
Question of the day, could you please tell me why this leaf is striped like a zebra? At the moment only one has this color, could it mean a lack of nitrogen?
Week 5
Leaves. Other
3y ago
2
1
Solved
KeepOnGrowin
Spots On A Couple of Leaves.
Several leaves have developed spots like this over the last 72 hours. The plant is 26 days old and otherwise seems OK. Any thoughts on what it is? What do do, if anything.
Week 4
Leaves. Other
4y ago
5
3
Solved
Area420
Deficiency?
Wondering if maybe she has a deficiency? No nutes. I tried to bring attention to it in the video in diary. Healthy leaves showing something. Tap water that sits at least a day. Was able to dip a pH strip today my jug showed close to 7.
Week 5
Leaves. Other
4y ago
4
2
Solved
TegridyFarm
Blotch on plant
2 weeks into the grow, any idea what this blotch is? It’s next to a plant in flower Think it might be fungal but want more opinions for me to research into
Leaves. Other
6y ago
2
3
Solved
jle_bwk
Brown spot on seedling.
Hello, Should I be worried about this brown spot on seedling 🌱? It’s only had ph water. Thanks
Leaves. Other
3y ago
1
1
Solved
CaptainChunk
Hello! First grow. Yellow spots leaves edges curling. My 8 days old BF Wedding Cake Auto showed some yellow spots. 7th and 8th day photos for comparison!
Growing in Biobizz lightmix+Biotabs Starter Kit soil. Been giving her tap water only (150-200ml) every 2 days (ph around 8), as its said in Biotabs manual. 24/0 light schedule on a 260W LED custom panel. Other identical plant growing in the same conditions seems fine. HELP PLEASE
Leaves. Color - Yellow
Leaves. Other
Setup. Seedling
5y ago
3
3
Solved
Isabelita2379
Hoja
Por que la hoja crece curveada???.
Week 2
Leaves. Other
5y ago
2
3
Solved
Hisknibbs935
Leaf health
Should I worry ? is this a deficiency, it can't be seen on the underside of the leaf,maybe From foliar spray ?
Leaves. Other
6y ago
2
2
Solved
m0use
white tips on seedling
whats up with white tips on seedlings? It does not look burnt, The soil mix is same as other plants. Seen this once before & recently in Questions tab. Could only find this one. 1yr old. https://growdiaries.com/grow-questions/33624-seedling-white-tips Any idea whats happening??
Leaves. Other
Plant. Other
Setup. Strain - Autoflowering
4y ago
5
2
Solved
Killab1405
One green stalk? Wtf
Why is this one stalk greener than the others? Probably not an issue just curious
Leaves. Other
5y ago
2
3
Solved
natuurlik
Possible nutrient deficiency please help
Whats with the colour on these leaves, Ph is in check, I've kept it in the range of 5.9-6.2 PH since seed, the older leaves like the one on my hand looks almost wrinkly like old peoples hands after being in water for too long... any help would be greatly appreciated
Week 4
Leaves. Other
6y ago
2
Solved
Adkguerrilla44
Skinny leaves would blue spectrum help them?
Hey all so so im growing with a 220w full spectrum led (viparspectra xs2000) and a 230w veg and bloom full spectrum led(viparspectra va1000) and i am having issues with skinny leaves on my buds and am wondering if i was to turn the bloom off if it would help my leaves grow bigger
Leaves. Other
2y ago
2
8
Solved
lg2200
discoloration on leaves. (see pics)
A few lighter spots on leaves.... anyone have an idea? could it be TMV or similar virus? or normal nothing to worry about.
Leaves. Other
6y ago
3
3
Solved
Niceguy
Weired shape leaves
Why my plant having weired shape of leaves? It ok to let the leaves or have to cut?
Week 4
Leaves. Other
5y ago
3
3
Solved
poke_smot
Help with drooping leaves
Hi All. Can someone please have a look at the health of my AK47? As you can see from pics, lower leaves are small and drooping. Have already topped and pruned. Wattage is around 500. Distance from plant about 20in. Humidity around 50 percent. On a 16/8 light cycle. thnx
Leaves. Other
3y ago
2
3
Solved
buddhi_coop
Leaves - veg week 2 (Runtz strain)
How do I get more leaves ? It’s Runtz , veg week 2 . Has one really large green leaf & then a couple light green ones all hanging on one side , not much growth that I’ve noticed. Other clones around it (different strains) seem fine, i just need to get this one to catch up w/ them
Leaves. Too few
Leaves. Twisted
Leaves. Other
5y ago
1
1
Solved
420USA
Leaf
Just did some defoliation on the plants. Do i have to much nitrogen in the leaves also why is the leaf veins going purps.
Week 5
Leaves. Other
4y ago
4